That is not Valid because of the following,
1) Bukkit.org would NEVER allow a plugin like that on a server.
2) Second, who even installs that plugin is pretty stupid, since you can do "/pl" or "/plugins ?" and you could see ALL the plugins the server has if they didnt block them.
and 3) Im sure there is a Notification when you log into a server, making it pretty possible to see/catch it, making players leaving the server and giving bad reviews of it.
Also, the server members that "Griefed" the server you played on, probably just hacked his account, and logged into his server and griefed it.
Anymore questions, just PM me
