> Ranking posts/comments by the exponential of inverse IPAddress-post-frequency

Doesn't this just incentivize posting a bunch of comments from your residential proxy IP addresses to launder them? This smells like a poor strategy that's likely to lead to more spam than not. Also, everyone has to start somewhere so your legit IP addresses are also going to seem spammy at first.

I think residential proxy IP's still have the same associated cost, and arent those often for bundled traffic?

I'm not much of a blackhat so excuse my lack of knowledge on tricks of the trade