@Setanta,
Setanta wrote: I'd rather see historical topics in a general feed
I suspect you'll still be able to put history questions/discussions into a general forum.
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When I thought about this last night, I was wondering where threads from the conspiracy theorists are going to go. They don't self-id as conspiracy theorists and I couldn't imagine anyone interested in history as an area of study would want to moderate a forum that included those threads.
I suspect it'll shake itself out. Perhaps one of the things forum leaders will be able to do is view first posts in their forums before they are added? that could be helpful. Maybe block conspiracy theorists?