I am not sure but if people are saying that it is not triggered the only other way I can think to do it is with either AI or the object editor. I don't know the AI editor at all and in object editor the priorities is the only field that seems to apply.
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.