Like @Chary said, we should have more staff, and BRING BACK TEMPBOT (okay actually that wasn't what I was going to say but I forgot, I'll say if I remember.
Inspired from another web site I use sometime
Allow the OP of a topic to mark an answer (or more) as "best answer" or "this fixed my problem" or whatever, just so that if anyone else has this specific p^roblem or question about homebrew/hacking/console hardware/whatever, he will be able to quickly find the answer, as that/those answer will be pinned at the beginning of the thread (Like right under the OP)
It's definitely not perfect, but the fact that I can't think of anything major to change is probably a good thing. Maybe minor things, like the ability to hide country flag, move News to the disabled section on Portal Preferences, or filter out all posts from people with anime avatars. Yeah, that'd be great.