I have no idea what a "man bun" is and I'm afraid to google it. I like my beard, though I'm a man, I'm 40, and about as far from a hipster as you can get.
What I'm understanding is that what people think factors into how you make yourself appear, and that's far less desirable to me as part of the gene pool than a guy with a ****ty beard.
I'm not trying to be desired by you, A. That's not the case at all, if you knew me, B. If you can pull the beard off, I'm all for it. I just see so many kids that think its cool that try and pull it off, and it looks flat out silly. Kind of like I did with huge sideburns at 18. I mean, I grew them down passed the angle of my jaw. I was cool, man. Looked goofy, though.
I'm just wondering, why does it matter to you? They think you look so weird and goofy too. I don't like fashion or fashion trends either, but I just apply that to myself. I can't imagine being irritated about how someone else looks unless I'm looking for a short term sexual relationship.