It would be nice if people trimmed them. I don’t really like the sight of long, scraggly, unkempt hair anywhere.
You mean besides all those books about puberty we all read?
http://health.howstuffworks.com/skin-care/underarm-care/tips/5-tips-for-preventing-underarm-odor.htm
I hate body hair
I do not like it anywhere
From nose to toes
A human should be bare
I hate body hair
Grab the razor
Buy some Nair
The Epilady’s still around here somewhere
©2005 Jay Seeley
You are officially the manliest man around this thread.
I stand corrected and enlightened, thanks. 
As do I. Anti-antiperspirant seems to work better, too.
I’ve never done shaved and never would. I think it’s weird. But whatever floats your boat.
It’s not as bad as it sounds. Take a shower, lather/rinse your pits, wrap about a dozen pit hairs around your index finger and give them a quick tug. Repeat until the only hairs remaining are too short to get a grip on. For what little discomfort I experience in doing this, the results are worth it.
I’m a (straight) male, and I shave my armpits weekly, along with my chest and torso. Besides being more aesthetically pleasing, the lack of hair under my arms helps avoid those disgusting clumps of deodarant that used to get caught under my arms. It may reduce perspiration, although I’m not absolutely positive (I’ve never though to try to measure; at the least, it doesn’t increase incidence of noticing sweat under my arms). And, when the stubble starts growing in, the hair is soft, so there’s no discomfort from a few days’ growth.
I’m a live and let live kind of guy, but if anyone is on the fence about this, I suggest you give it a try!
I would never harbor negative attitudes towards guys who want to shave their pits or, for that matter, any other hair-bearing bodyparts. As long as I don’t have to run headlong into negative attitudes towards my choice of not shaving those same places on my body.
If I were female I’d be outraged and furious all the time about the attitudes that say women must shave here and here and there and there and so forth.
I shaved my pits this year for the first time and oddly it seemed to make me smellier. Without hair to wick away my sweat it just seemed to pool there and go bad. I’m now trying to regrow them and get back to my normal hairy self.
The sources for your cites don’t support your assertions
(say that 10 times fast)
Oh me too! There is nothing like a nice clean shaven >X<, wouldn’t you agree? 
I’ve shaved my armpits off and on over the last few years. For about the last year I’ve been shaving them every night when I shave my face. I shave in the shower and as long as I’m doing my face (and sometimes scalp) it only takes a few seconds to do my underarms. The first time I did it just to see how it felt. It felt good! The main advantage to me is that my armpit hair is very sparse and yet, it seems to me, grows too long and looks weird. Shaving is much easier, cleaner and faster than trying to trim it. Also, my preferred deoderant is a stick and now there’s no tugging at the hair when I apply.
I wear sleeveless tee shirts in summer and often change out of my wet kayaking gear around other people. Someone probably has noticed by this point but no one’s ever mentioned it.
If you want me to shave everything off then you, the man, should damn well put effort into your landscaping too. If you don’t, then I won’t be fussy but I like it when a man has everything tidy.
I am a man and I totally agree with Emily. Underarms hair in men is ugly and acts as a barrier between skin and the deodorant.
OK, since we’re discussing this again, visually I like to see some pit hair on men, I think it’s sexy and also just the sight of it can simulate a kind of intimacy. In the case of real intimacy, I also like to be all up in there, with two provisos: recently washed, and no anti-perspirant (last thing I want on my tongue is the aluminum whatever they use in anti-perspirants). Having said all that, there is such a thing as too much pit hair, which is rather off-putting.
For myself, I don’t have a lot of body hair and for some reason almost no pit hair, and what there is is light brown (and now going gray) so it blends in with the skin. So at first glance you may think I shave there, but I don’t.
Most woman I have dated will shave their pubes. I always have to tell them I prefer a nicely trimmed bush cut down a bit but still plenty visible. For some reason bald pubes on a woman bug me. Since I have gotten older I have found some older woman loose most of their pubic hair. I have a hard time with it but if we were steady I am sure I would have no problem adjusting.
I have almost no armpit hair, so I never felt any need to shave them.
That’s happened to me over the past few years, as I’ve gone through menopause.
While I didn’t see as many naked people as a pharmacist as I would have as a nurse or doctor, I did notice that body hair often thins out dramatically as people get older. (Not that I’m, like, looking at that while I’m attending a code, but yeah, you do notice things like that.)
As for a man shaving his underarms, whatever floats your boat, I guess. I don’t have an SO, but if he wanted to do that, it wouldn’t bother me. I have no armpit hair fetishes one way or another.