If there's really any reason I'd probably quit this game, this is at the top of the chart, which means there's not a lot of reason I would (but this might do it).
Throwing mud at people serves absolutely no positive purpose to the game whatsoever. If it was a season thing, fine. Then end it at the season. If it's for an event, end it at the event. Giving this to people to use indiscriminately completely screws up the game for others who really aren't enjoying it. I can't literally go from one part of a town to another without at least two people throwing mud at me. Even the sound effect is annoying.
If you're a roleplayer, you're roleplaying is completely destroyed because now you have to participate in someone's childish antics. No matter what. And then you get the guys who sit in front of turn in locations and nonstop throw mud at everyone who comes along. Endlessly, like they don't actually play the game but just throw mud all day.
Fix this please, and here are a couple of suggestions (that should fit in with whatever nonsensical reasoning someone came up with behind thinking this was a good idea in the first place):
1. Put a timer on mud. You can throw it once every five minutes (or hour).
2. If you've been hit by mud, you can't be hit by it for another five minutes (or hour)
3. Turn off mud animation by choice on character settings. GREATEST SOLUTION EVER
4. Make mud seasonal
5. Have Molag Bol automatically banish mud thrower to Coldharbour forever. (my personal choice, unless they threw it in Coldharbour, and then banish them to Craglorn)
Clueless, but willing to learn.