In my own view I think the activity rate of the authentic sportstalk post will have to increase so as to keep other community trying to spam here at bay.
Imagine when we get to a 5000 active users posting and engaging everyday. Other posts not related to sports would be neglected and no attention will be paid to them.
I see most sports post are mostly Actifit and that involves the users in the community and ones that aren't too. I hope things change for better soon.