Of course nothing is preventing anybody from making many discussion forums for Maemo related items. Take any SW platform, there is usually a central information/discussion hub and then additional sites and forums. That's cool and all that.

Perhaps that site can be then have a hue selector so that every user can tint the background the colour they want to look like. It's like the Smiths song: "I wear Black on the outside / 'Cause Black is how I feel on the inside."

Then again, in all seriousness, I have difficulties in seeing how such a forum would gain much traction, at least in this stage of Maemo.