My many cents:
To simplify this whole saga regarding formatting and extra tags and the like, here is the easy solution: Allow html in posts. Many sites allow html code in user-posts. That puts the hones on the poster. If someone can't use std html then they should just learn. This is a programmer's forum after all. Not only does it make like much simpler in terms of future format-related features but it means flexibility. Adding a few template buttons would be a time saver but not essential.
Users who have been around long enough to prove they are good citizens should have some sort of administrative rights over threads they start. Not only would this take a massive load off the moderation staff but, as someone mentioned, it'd be nice so far as preventing the I need my old WIP thread, "The Eight Fingers of Aztok", unlocked
clutter. I'd also like to be able to delete threads for projects that aren't valid because they were dropped. etc. By delete, I just mean that access rights are modded so only the thread creators and moderators can still see them.
At the risk of incurring everyone's wroth, I think this is a potentially bad thing. Sure it feels good to get your answer 'up-voted' but this has the potential to leave behind sour grapes. It also can create a situation where users start up-voting another. Putting all this aside, life is very subjective. There are many times I've searched for answers online and found a forum where the answer with ~100 votes is not half as good as the one with ~20. People have a sheep mentality and once an answer gets enough votes, they also have a tenancy to automatically agree with it. Finally, and this is the most annoying bit, it can lead to people answering every question they can to try and earn more points. Take a look at the help forums around the net and you'll find them littered with pointless answers and copy-pastes from other sites.
Avatars and Sigs:
I think it is, as someone stated earlier, about high time this forum had larger avatars. These little images are silly. As for sigs, I do understand a point made by someone a while back when they said large sigs turn the forum into Vegas but I think allowing a few more px in width and height wouldn't hurt. Also, the char limit for sigs is ridiculous. I think that chars should only be counted if they are not part of a link/tag, i.e. they are actual visible text.
I'm not a great fan of change, an opinion that apparently other users share. I'm therefore requesting that the placement of things please not get modified too much and that the original font, at the very least, be available as an option.