Should there be a minimum number of contests for a user to be able to comment, upvote/downvote and post blogs (different number for each, maybe)?
This way, people can't simply make new accounts and upvote/downvote. It would mean upvotes/downvotes are more genuine (less people upvoting reds blindly). It would mean that people are less likely to make many accounts to downvote out of hate.
StackOverflow, for example, doesn't allow users to upvote or downvote unless they have a certain amount of positive contribution. I'm not saying we should do this, but I'm just showing how it can work in practice.
Finally, I know this isn't a new idea and I'm not saying it is perfect. That's why I created a blog so hopefully we can have meaningful discussion about this in the comments, to keep our community healthy.
What are your thoughts?