Well I'll tell when I have a strong view on this. :)
I'm not sure if it's already explained somewhere, but it would be interested to know how the content is actually separated between automated or bot votes and the actual votes. As I can think of many ways of trying to get around being detected as a upvote selling account, but of course, most of them take extra work and currently bring no value to the bot operators, so I'm hoping it'll stay that way and the bots will stay as simple as they are :)
RE: Steeve Now in Public Beta: Personal Recommendations and the World Without Bidbots & Voting Trails