A lot of people on Facebook use their real names, and back before I quit it, I was pretty shocked at the kinds of horrible things people would say under their real name and under a picture of their face, also, knowing full well their friends and family could easily see it. I don't think real names would help that much.
That strikes me as boomer stuff though. Not as many millennial++ doing that, and I figure that number will just decline (especially given that you can easily just go be socially repulsive with anonymity and no repercussions on other mainstream networks now).
LinkedIn is a professional network. It's not designed to facilitate the same types of conversations that happen e.g. on Twitter (and no, I don't think the presence of anon accounts make Twitter what it is, at least not in the circles I care about).
"Real world" is umm... okay. Thanks for the contribution.