Good ideas and conversation. No ads, no tracking. Login or Take a Tour!
To expand on spam. An option, that I'm fairly sure would be unpopular with mk judging by his comments, would be rate limiting free accounts. It doesn't prevent free users from participating, if anything it encourages more thoughtfull posts and provides a better opportunity for people to learn who they would want to buy memberships for. It also encourages heavy users to suppot hubski.