this isn't about anything specific, this is just a general question.

i always assumed that multiplayer wouldn't work on pirated copies of games, or at most you'd have to play on specially configured servers. but the other day i saw a thread about a game where online multiplayer works even with pirated copies, and now i'm curious about how often that happens.

i understand that every game is different, and i want to know: what are your experiences with online multiplayer in pirated games?