We've got two forums to help make this site better in a technical sense.
You can go here to give us suggestions on forum layout, article formatting, stickies, site management and anything that is about the site as a whole (rather than just the technical part of it.) Just make a new thread, and keep an eye out that the topic you're posting about hasn't already been covered.
This is our actual bug tracker/feature development forum. We're making an effort to keep track of things we would like to do, along with the technical details and useful links we will need to get the job done. If you're particularly handy with .css and would like to suggest an actual edit (e.g. 'change t attribute in x style sheet to g, to get rid of y problem) please do so. Most of the techy stuff is currently being handled by me, so it's best to get feature suggestions to me via site feedback/indevelopment.
You can enter Equations via latex tags. There are buttons in the full posting interface that will wrap your text, and another that will pop up a proper fancy thingy. You will need to you \\ to make new lines.
I've added itemlink code (no button yet!) to the system, you can read more about our custom bbcodes here