I'll be honest, I never bother with introduction threads any more, but hi, I'm Ambivorous.
I didn't know this was a thing until I read in adcrusher's X-Ninja thread that some kind of revival was going on.
To get the obligatory things out of the way: I can program some and did web design for a few years - a lot of which was personalising forum software (mostly phpBB), so creating themes and adding little programs that automate collab creations would be right down my alley. That said, I'm sure there are others who could do better and are all ready part of your dev team.
Now to help with ideas.
When I first came here three years ago you guys had a pretty, pixel theme and those pictures at the top with links to impressive works and collabs really dragged me in. Then I got to looking at the most impressive works on these forums (from feature chest, etc.) and it inspired me greatly do get my pixel on. Then I started viewing other threads of works I found very appealing and finally I created an account and posted a work of my own.
And theeeennnn I didn't get a response for 5 or 6 days so I got kind of over it, sadly. Then I didn't really come around for 2 years.
So, assuming I am your average Joe visitor, I'd say more competitions, a pixelly theme and continued assistance in that pixel art forum should be enough (all things all ready mentioned, I'm just confirming they worked/would have worked on past-me).
That said, I'll start helping out on more topics to do my part.
Though to be honest, I am still very much learning myself, so I feel quite insecure about my suggestions sometimes.