So there is a vested interest in the community downvoting spam. That is if you want a better reward for upvoting relevant content there is an incentive to downvote garbage. Some members such as myself are fairly active in downvoting, but there is also a flag inappropriate content option on each post (the 3 dots). Flag them and downvote them and they will get cleared. FWIW until this week this was only minimally an issue.