If you are using Gossamer Threads Links 2.0 here is a link to some mods, including blacklist, random number on submit, and a bunch of other stuff. Most of these mods I found on the GT forum, some I hacked additionally, but they DO work as they are being used on several LL's that I know of. I'll help anyone get them going if I can, but sometimes at 60+ I get a bit of CRS. :-)
http://www.thenichewebmaster.com/Linksmods/