Like many users, I'm active on both forums. I have my older topics here (which are still active, maintained, and with working codes) and newer ones posted at ahkscript.org.
I would prefer this forum with IPB software because it looks better and more modern than ahkscript.org (PHPBB). Autohotkey.com is also more active than ahkscript.org, it is a place where AutoHotkey community started to form and grow, it is better known as "forum for AutoHotkey" than ahkscript.org, it still has much more useful code than ahkscript.org (although ahkscript.org has a plenty of fantastic new codes), and there's also a personal reason; most of my topics are here.
But if polyethene will remain the only and absolute master of this forum, I vote for status quo, where we have two separate forums, because too many bad things happen in the past. Please be careful not to repeat the same mistakes from the past. To be clear; I'm not a "poly-hater", on the contrary, I consider him a great contributor to AutoHotkey, but due to some bad things which happened, there's still some time to pass before he will restore his good reputation and trust among older AutoHotkey users.