I find it difficult to believe that Redditors don’t understand that anonymity online is merely a facade; indeed it’s probably one of the reasons that revealing the identity of pseudonymous Redditors is looked on as such a huge betrayal. That said, anyone who goes to Reddit and truly believes that a site-standard ethos of “don’t reveal our members’ identities” fully protects them from being revealed or allows them to revel in obnoxious and/or creepy behavior without fear of discovery, they’re kind of dumb. I won’t say that they deserve what they get—maybe they do, maybe they don’t—but I will say they shouldn’t be terribly surprised.