Could it be possible to provide some different color schemes for the site? I for once would maybe prefer having a "darker" site. Using CSS could very well do the job.
i don't mind this current theme, but i would really like a darker theme.
vBulletin supports per-user skinning, so I don't see why this couln't happen?
Same with the avatar thread, as its per-user, is there any harm in enabling the feature sets?
Using CSS, you can do it yourself by setting an alternative stylesheet in your browser (most browsers have that feature)