Support Request is a handy plugin which provides a friendly to use help system for online players. Players can send a support request with a simple command. Any staff member with a certain permission will get alerted of the fact that a player needs some help. Scamming, unfair PVP-ing,... can be solved with this plugin.
Staff members can teleport to players how need some help, they can ban or kick them if necessary or send them a private message.
This handy tool can help your server against hackers, cause players our most likely to detect them.
Public release
Just put them in the commands and I'll take a look at it ;)