My thoughts on ideas already posted:
-Ability to disable sigs: Good. Sometimes I like to browse from work and have to disable images completely, which can make some threads confusing
-Splitting SA: Bad. Although I primarily post in footie threads, I also stumble across some other sporting threads of interest which I would have missed had they been in a different sub-forum
-Financial forum: Good. Could maybe include stuff like housing, budgeting and so forth.
Regarding banned members, it'd be good to publically air (where feasible) the reasons why some of the longer standing members got banned. For example Davey_Pitch always came across very well to me, top bloke in SA and Games, happy to engage in conversation regarding rules, seemed very likeable when I met him too. I got the impression that he wasn't overly impressed by the 'purge' of Dons and made a few slightly derogatory comments (nothing abusive) on the forums, but I'd still like to know the real reason he got banned. Maybe info like this could be made available in an special forum only accessible by pre-nukers (i.e. registered Oct 2002).
A clampdown on spamming would be good (quoting with no comment added, single smileys / "LOL!"s, creating new threads asking what to have on their toast etc).
Actually one statistic I'd really like to see on profiles would be number of threads started (i.e. ratio of threads

osts). Some people seem to create far too many threads (especially in GD) relative to the number of replies they post.
On a related note, people creating new threads about old topics is annoying, especially if there are some very good, long and well thought out posts in the original thread. Maybe we need more admin influence here in terms of merging/locking threads about existing topics - obviously this would be dependent on sufficient RTMs. Now, fair enough in some cases some titles to search for may not be obvious, but in some cases people are BLATANTLY just creating a new thread on some major issue which already has at least one big, active thread discussing it (for example, a major new game release). Essentially they just want to attract more attention to their post (OPs probably get read 50x more than random post on page 5 due to laziness from readers).