Well, what about modernizing this forum, buying domain, adding chat functionality etc.? We can contribute and make forum that attracts more people. Also seo-forum looks like general forum to talk about everything, I had idea to make such one too, so I am up to engage in modernization. This forum isn't very big so it's a good moment to do such upgrade in my opinion. Take a look at: elgg, humhub, discourse, flarum, forem. In case of chat it's better to use some app than deploying it on hosting because security and privacy reasons, also there are vast more secure messengers than forum apps. My suggestions: speek, session, tox, jami. There is also retroshare that is very promising p2p social neworking app, rich in features, yet it has clunky UI and terrible lack of developers (bc lack of funding and interest unfortunately).