Thank you. Yes, posting frequency and word length are some of the many factors used in the algorithm. It is interesting, but I don't want to disclose too much as it might undermine the effectiveness of the process.
I haven't been recording resteems, but I now you mention it, I suspect that might be useful for this classification too!
Yeah, you are right, thanks for answering my intrusive questions anyway :). Yeah, that's it, maybe if the resteem to posts ratio in one account is 90/10 I would say it belongs in the spammer side of things, maybe I'm being to harsh...