Blocks all avatar & signature images from forums
Tested on phpBB & vBulletin forums. Also works on Invision power boards.
If you find a forum where this doesn't work, please reply, so that I may update the script.

EDIT v1.1
* New phpBB object blocked

EDIT v1.2
* New object blocked (span.postdetails > a)
* Removed (a.postlink) due to incompatibility with certain bulletin boards

EDIT v1.3
* Should work with all new forums. If it doesn't, just hotlink the forum here and I'll add it to the arsenal :)
( Do not uncomment the older rules unless you know what you are doing )

EDIT v1.4
* Added more element rules

EDIT v1.5
* Added more rules. Thanks luckymouse.

My apologies for not updating this in a while.
Feedback is appreciated.