Are you familiar with the search button? Main Editor window, menu Advanced, menu item Game Constants, field name Xp Reduction Table. Set the value to 100, and make sure you tag "Use Custom Data"
Finally finding about some of the bots that are flooding the users online - bytespider apparently is a huge offender here - ignores robots.txt and comes in from a ton of different IPs
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.