If it were a straight preference, I prefer hairy chests & hairy legs. That being said, I would not discount a man because he had a smooth chest. These types of things are so not deal breakers.
VCNJ~
I like 'em burly and hairy myself. Saves a ton on dental floss. 
obligatory ‘snerk’
I think I prefer men less hairy on the body and nice and thick and wavy on top. Number of men I’ve had like that–exactly 1. And he was not so good in bed. <sigh>
That said, it depends. Some guys look very good w/o hair on their chests and some guys look, well, naked w/o hair on their chests.
Shaving the boy bits–never seen it in real life. Might like it quite alot, but think of the growing back. I hate stubble. Plus, it itches.
Cannot abide a hairy back-ugh.
Didn’t Miz Lillian Carter say that at her son Jimmy’s inauguration?
I prefer men to just be themselves, however hairy that may be. Especially eyebrows. I **HATE **seeing a guy with meticulously sculpted eyebrows. One of the hottest guys I’ve ever known used to have really gorgeous heavy black eyebrows. Last time I saw him he was all plucked, and he looked neutered.
Indeed she did. I wrote the line for her. Miz Lillian and I both agreed on the importance of flossing.
I prefer my men a little furry. It’s, ya know, manly.
Head Hair: I don’t like long hair on men. Other than that, no preference as long as it’s clean and groomed.
Facial Hair: I prefer clean-shaven. I can handle most goatees (though I think a lot of guys would look better without them), but I rarely like mustaches or beards.
Body Hair: No Robin Williams lookalikes, please (“Is he wearing a sweater?” “No, he’s shirtless!”). Otherwise, no preference.
Nether Hair: Natural is fine. A little trimming and edging might be nice, but isn’t required unless things are really out of control. I’ve never been with anyone completely shaven down there, but I’m curious about the idea and wouldn’t mind giving it a go (I prefer men who can’t be mistaken for boys that easily ;)).
Short head hair. NO back, ass or chest hair. Hairy but not jungle-esqe arms and legs. Trim the hedges neatly. No baldness down there, but make friends with a pair of scissors.
I dated a guy that was hairy and it was a turn-off.
Oh, I forgot.
Prefer a clean-shaven face. Stubble can be sexy, but it hurts when you make out. I don’t like whisker burn.
I don’t care much, but tend to dig black guys who tend to be less hairy. In general, as long as it’s clean and reasonably controlled, I’m cool.
But I do have a related story.
One night I ended up drinking with some guys that I knew casually. We were talking about hair removal and so forth, and I was getting rather gregarious, and I ended up ranting to these gentlemen about how women tend to be very conscious about personal hygeine and aesthetics and so forth, while men often don’t think so much about it, and how much I appreciated when a man would take the time to keep the hedge trimmed, especially when his foliage could run towards the unkempt.
I thought no more about it until months later, when I ran into one of the fellows that had heard my rant that night. He introduced me to his girlfriend. She shook my hand, and with growing appreciation said “[my realname]? You mean … trimming [realname]? THANK YOU! Thank you! Thank you so much!”
The boyfriend looked embarassed … but pleased.
And then I told this very story to another friend of mine and her new boyfriend, and she subsequently expressed to me her appreciation …
You shouldn’t, especially if you’re using a device like the one the OP’s link is about.
The back is the hardest part. But being a guy, if I had a hairy back, I’d probably get a “guy” trimmer and duct-tape that puppy to a stick or something, which would make it a lot easier.
Of course, it’s always nicer if you can get a good friend or SO to do your back for you.
As for any other naughty areas where you can’t see what you’re doing, it just takes a little practice learning to do it by feel.
It’s called a rabbit tail. Well, I call it a rabbit tail.