Re: my previous post and a couple of subsequent comments. And not wishing to disparage anyone's previous efforts in any way but the free forum hosting route wouldn't be complex and difficult. It should not require that much input or slog at all, in fact far from it - on the strict proviso that all concerned would be happy to let it be a bit of a free-for-all with minimal, if any, moderation.
Really just food for thought.
I dip into RP from time to time and do enjoy some of the stuff there but it does predominantly cover certain genres. That is of course perfectly fine, but any historical stuff really is pretty marginal and even the SF/Fantasy coverage itself is not necessarily that broad.