I do too. I’m paranoid, though, and I think that even if it doesn’t seem plausible or vaguely relevant that it would be about me. Either way, fuck that shit. If you don’t like me, you can say so. They’re the assholes if they’re going to complain about how much they dislike someone and then do nothing about having that person and their loathsome habits in their company, let alone notify them that said habits are so dreadfully horrible that it drives them to write passive-aggressive letters to anonymous offenders.
There are exceptions to every situation, but those are my feelings for the most part. If someone offends you, you stand up for yourself. You don’t tiptoe around them. (Standing up for yourself also should not involve kicking other people in the backs of the knees to get them to fall down for no other reason than that you don’t like something they did/do/said/say.)