I'm not sure it should matter, as in my experience the OT forum is just as important in building the community here as any reef discussion... although it does require a bit more work on the part of our staff
If 75% of our posts were OT and we ceased to be a reef forum, I suppose that would be a problem. But I don't see that happening at all. We get hundreds of fresh eyes on the site every day from reef-related searches.
1141 posts is reason to celebrate either way, IMO.
That's more than we got in some months in 2004.