Voting is PoW-based on notabug, so users can upvote themselves multiple times (spending their CPU time). It also means top posts are not really most popular pos

Voting is PoW-based on notabug, so users can upvote themselves multiple times (spending their CPU time). It also means top posts are not really most popular posts, just that the OP was stubborn enough to upvote himself into positive score when downvoted a couple of times.