I haven't as an admin of my own forum, but on the vB forum where I hold a staff position, I got into a fun spot of drama last year, lol. It's a Pokemon forum, and in addition to being an administrator on the forum, I was a Gym Leader, which functions exactly as the gyms do in the actual games. The forum has a strict no-hacking policy, so after each loss, the Gym Leader checks the opponent's team to ensure the team's legit. After being beaten (something like 0-3 [you start with 6 Pokemon each]), I checked his team and, if I remember correctly, he had at least two blatantly hacked Pokemon. As protocol indicated, I reported it to the rest of the staff and we put him into the hacker usergroup (which makes their username red and appropriately gives them a "scarlet letter," alerting others not to trade with them), which he obviously reacted to with anger. The kid got angry, blasted me and the rest of the staff in a forum thread, whined a lot, and eventually got banned. Luckily, no one else came to his side (mainly because his claims were ridiculous and false, haha), but it was rather annoying for a few days. /essay