Your first clue is that meat eaters are even in the "Vegetarian & Vegan" section in the first place.
Now, granted, new questions come up in the main "Food & Drink" category, seen by all. But anyone who can read is then capable of seeing the V&V category, and realizing maybe the question isn't intended for them or, at the very least, is a genuine question looking for a genuine answer about veg'n foods. (I mean, it happens to me in other sections...where a question catches my eye, then I see it's in a section that isn't of interest to me, or one where I have no particular expertise. Since I don't answer questions where I don't have something of value to offer - personal experience or expertise - I don't answer. I don't know why this is magically rocket science for meat eaters in the Food & Drink category.)
Still, I agree with you. I have not personally witnessed a veg'n behave in a hostile manner to a non-veg'n...ever. I have not seen it here, either. I have seen some veg'ns get extremely frustrated with the personal attacks and infantile comments left by some meat eaters...you know...in the Vegetarian & Vegan section... (snickering) (losers) But that's just a form of retaliation, after some meat eater starts talkin' some kind of (inaccurate) smack. I have not seen veg'ns on the offensive...ever. I have only seen sh*t started by meat eaters, although I, and probably many other veg'ns, are happy to "end" it, when they do start it. (giggling)
I have no problem with intellectual debate. But intellectual discourse will never be confused with the childish, insulting, just plain inaccurate and defamatory comments left here by some meat eaters. Obviously, the people who eat meat and are happy to have conversations about different dietary and ethics issues can do so in a productive, mature manner. Some do, which I think everyone would agree is fine and dandy. But like you, I do not see this very often. Instead, it's a bunch of yahoo meat eaters who (therefore) have either zero knowledge of good nutrition (if they're talking about eating cheeseburgers) or zero concern for the welfare of voiceless animals kept captive and often abused, or even the welfare of the planet, which is greatly harmed by factory farming practices.
I am vegan. My husband eats meat, along with every friend and family member I have. I find THEY have the issue, though, not me. I N-E-V-E-R bring up vegan issues. I will discuss if it asked. But it's such a personal choice, I respect that in others, and I wish more of them would respect that for me. I spend a lot of time saying things like, "that's fine" or "I'm good" because THEY are so concerned about what I eat and want to make sure I have what I need or that the waiter at a restaurant knows my eating habits. (From my friends and family members, it comes from a generally good place, if not a bit misguided.) I don't like it when they do that. I prefer to just take care of business myself. But THEY see me differently. And I guess that's the thing. I don't look at them any differently, but they view me as being somehow "different". And for some emotionally-stunted individuals (seen here at Y!A), if you're different, you're to be ridiculed.
My only advice is to just ignore the troll. If you have to, expose him/her for the troll he/she is. If we wouldn't "feed the trolls" there'd probably be fewer of them.
Personally, I think meat eaters who come to the V&V section have something wrong with them, unless the question specifically requests a debate. When someone asks for vegan recipes, they're not requesting that vegan haters call them nasty names and belittle arguably the healthiest dietary choice a human can make for him/herself. But what're ya' gonna do? It's the Internet and, sadly, cowards will hide behind their computer keyboards. Just think of them as 12-year-old American boys who are still virgins, or middle-aged men who are fat, ugly, and impotent. Then you're more likely to feel sorry for them, rather than be harmed by what they say. I mean, who gives a da** what some fat, old, iimpotent man says? Really? Who???
I hope you have a great day!
EDIT: Thanks, Salade Girl! (blushing) I'm the same way. I wish I could come to this section and share recipes, or even have mature discussions about health, ethics, and environmentalism as it relates to diet. But it's nearly impossible because of the veg'n haters. You have to just bite your tongue and be infinitely more mature and generous than these types, and try to ignore them. It can be tough, at times, though. Maybe it should be renamed the "Vegetarian & Vegan Bashing" section? I mean, that's pretty much all it is, anyway. :-(