One of the members responsible for that increase is definitely @GazetaBitcoin. He has been very active lately in cleaning the altcoin section from all that paid redundant crap, based on this
list. For example, just yesterday he reported
2255 posts, which is insane number. Majority of people don't report that much in a year, let alone a day or two.
Yeah, I probably handled over 2000 of their reports last period, and no doubt other staff also handled a lot of them. So, that definitely played a part in the final statistics. Though, I suspect that there were other areas in the forum which were pretty busy last month.
I suspect this month judging on the reports I've seen myself, and bare in mind I don't see all sections. I expect lower figures this month, but definitely a little more than previous months. Though, that's based on the amount I've seen currently, the period is far from over yet.