▲ 3 points

What are some techniques to filter out spam on vote based systems?

by oxplot·15y ago·4 comments·view on hn ↗

In my example, users vote a post either as good or bad. The only solution I have so far is to put captcha on sign up and block IPs with lot of activities for set period. Are there better ways of doing this?

4 comments

I'm confused. Are you trying to stop people from spamming the voting system (up/down voting), or are they submitting spam posts and then voting it up?

Both. However I'm not very concerned about the latter, because other users can down vote a spam post. What users can't do is upvote/downvote a vote itself.

It is hard to say without knowing more details of the system you are working on, can you elaborate?

The system would be very similar if not entirely identical to sites like youtube (comment section), stackoverflow, reddit