It’s odd to me that so many are citing the texture. Despite not being fond of mushrooms myself, I have no problem with their texture.
Canned or jarred mushrooms are horrible, rubbery, tasteless things.
Fresh mushrooms are good and can be great. I wonder what you do to them to even get them slimy, to me that sounds like complaining about the saltiness of strawberries.
Do you perhaps wash them? 
Then they will soak up the water and become disgusting. Just use them very fresh, clean them with a soft brush, cut them in halves or quarters (not too-thin slices), and brown them for a minute or two in melted butter, preferable butter you have already cooked shallots, onions or garlic in. Adding finely cut leek is also an option. Add salt and freshly ground black pepper to taste. Personally, I sometimes use a spice mill with venison spices (juniper berries, bay leaves, allspice, cloves).
Some might add cream or sour cream for a sauce, but IMO that makes the dish too rich.
They just taste awful. I can’t really describe it any better. And it’s a strong awful that tends to permeate any dish they’re included in, making the whole thing inedible (barring some chinese food, which somehow makes picking around the foul things feasible.)
It seems to me that most people who have a negative association with the texture of mushrooms acquired it from frequent exposure to canned mushrooms - I don’t think there’s any way to prepare any variety of fresh mushrooms that can give them anything like the sickly, rubbery texture and total absence of flavour that you get from tinned button mushrooms.
As for flavour, I can understand how someone might not like some of the more strongly-flavoured mushrooms. Me, I love shitaake, but for sure they have a pretty intense earthy flavour - and this flavour is somehow much more intense if you ever use dried ones. The first time I served my family a dish that used dried shitaake, the first bites had my wife grimacing and exclaiming so much that I had to sort of kick her under the table to remind her that she might influence the kids’ with that. (After the first couple of bites she got over the initial shock and actually enjoyed it.)
I realize my post might sound condescending. My apologies.
If you do not like the taste of mushrooms (or anything else), that is perfectly fine.
It is just that soaking mushrooms in water while cleaning them is a too common mistake that automatically results in disgusting spongy stuff even the cooks themselves dislike. When learning to cook, I did it myself far too often.
When I was a kid, I placed mushrooms in the “vegetable” category. Vegetables = yuckaroo!
But now that I know they’re more animal than plant, I like them just fine. 
I love mushrooms, but it’s pretty clear to me why people would dislike them. And my guess (texture) is borne out in this thread.
There’s been several tests on this by various food experts over the past ten years, and everyone has come to the same conclusion: mushroom don’t soak up water any more than any other vegetable. Wash 'em to your heart’s content.
I disliked mushrooms as a kid. In my twenties, working my first desk job, I started eating a lot of salads (to help maintain my weight). After a visit from my mother, I found a few mushrooms she had left in the fridge. I looked at them, shrugged, and threw them into my salad that night. The rest is history. I put mushrooms into pretty much anything nowadays.
Exactly what I came to say.
Plus I like culinary shrooms as well as the more psychotropic varieties.
I also disliked mushrooms as a child but now I like them quite a lot. I think my dislike in younger days was primarily based on fear of the poisonous ones.
Then again it could have something to do with watching the old Japanese horror movie “Attack of the Mushroom People” when my brother and I were young. Wouldn’t touch the things for many years. Later, I got over it and today enjoy them.
Most mushrooms don’t taste like much to me either, but I like them for the texture.
Hint: If they are slimy, they’ve probably started to go bad, so don’t eat them. Fresh mushrooms are not slimy.
Hmm, I wonder how mushrooms sauteed with cilantro would be…
They taste like slimy, moldy, dirt to me. What’s to like? and if you saute them, they are slimy.
The only mushrooms I like are oyster mushrooms. The earthy flavor of most mushrooms just doesn’t appeal to me much, and the texture of most mushrooms is downright disturbing.
When I was a kid, I HATED mushrooms. Reading this thread, I’m remembering that my mom used the jarred ones. They are truly barfy. I was also, as The Great Carlin put it:
"As a child I was what is known as a “fussy eater.” ‘He’s fussy! He’s a fussy eater!’ “Fussy eater” is a euphemism for “Big pain in the ass.”
As I got older and began to cook some, I realized it was texture that bothered me, more than flavor. So I keep trying stuff I used to hate (but using fresh–my mom does too now, but now she’s no longer working all three shifts) and it turns out I kinda like mushrooms. Oh, but raw tomatoes, I still shake my fist at thee.
I’m with you on this one. The texture doesn’t bother me–I enjoy plenty of things with worse textures, like raw oysters. It’s that distinct mushroom flavor that is an intense turn-off. And although the intensity varies, all the varieties I’ve tried have had that same flavor undertone.
I “accidentally” took a class in fungus in college. The prof took it as an opportunity to increase our exposure to more interesting varieties of edible mushroom, cooking quite a few varieties for us to sample on a couple of occasions. I decided I would give it my best shot. No dice; they all had that same flavor component.
Some of them might not be so bad if you could just remove that one component. I love the umami taste in general.
I think a lot of the mushroom hate is because their most widespread use is on pizza, which is a horrible place to use them. It isn’t that people really hate mushrooms, they just like pizza.
Sauteed mushrooms, grilled mushrooms, pickled mushrooms = wonderful.
But mushrooms on a pizza spoils the pizza.
Anyone else morel hunting? The “free bounty” is another shroom plus.
While growing up, my mother used the horrible slimy canned mushrooms, because she liked mushrooms. I loathed their texture and hated the flavor.
However, when I grew up I realized that the canned convenience foods my mother often used were rather horrible compared to fresh (canned corn yuck, fresh or frozen yum). So, I tried some non-canned mushrooms. Only to discover that they had a complextely different loathsome texture, and still had that off-putting flavor.
Every once in a while, I’ll try a new preparation – say, mushroom ravioli in browned butter sauce – and always regret doing so. As far as I’m concerned, mushrooms can be flung off the planet along with that evil weed cilantro, and anyone who opines “oh, you just haven’t tried them” is free to go along with.