Hmm... I think the idea is not bad at all... We just need a system to keep it up to date.
Like, a team of players to start a thread with the tag list. The new factions can simply PM that designated team with their faction tag, a short description and a link for their info page.
We do have an up to date Player faction page, but only for official ones.
Having one for unofficial factions is a lot of work, but I am up to the task.
Let me know if you want us to do this. We can search more people and build a nice unofficial faction database.
I think this will help the new factions as well as it will help things to stay more organized without having the
moderators/devs/admins to work extra...