Certain users, one in particular, have large accounts and are voting their own content up. This is fine, in the overall scheme of things, on the surface. Except they are doing it on spam posts and comments. What this means is they are taking a huge chunk of the pie that is steem tokens, which are limited so as to give them value. You therefore get much less for your hard worked upon posts.
FTG is going after one particular troll who is mighty indeed and him and his mate just vote for each other on crap.