Personally I avoided voting on top-level posts at all in the last thread because I think the system is confusing. As some others pointed out there I'd rather upvote interesting posts (in the context of being a thread about unusual ideas) rather than the ones I disagree with.
I tried to avoid voting on anything, because I couldn't decide how to handle the non-top-level comments. When people go beyond baldly asserting things, and start having actual debates in subthreads, things get muddy.
I'd like to use this thread to review the "What are your contrarian views?" thread as the meta discussion there was drowned out by the intended content I feel. What can be done better with the voting system? Should threads like these be a regular occurence? What have you specifically learned from that thread? Did you like it at all?
Usual voting rules apply.