I recently had a commenter who upvoted my post, BUT, also upvoted her own comment, with an even higher voting power, x 7. I then looked her profile and wallet. She's been on Steem only for one month, but has a massive voting power delegated to her. The recent hardfork has allowed this sort of thing to proliferate.

Anyhow, like you @inber, I don't really care anymore all of the Steemit "corruption", and am focusing on my posts and connecting with decent people.

As for the comment spammers, I ignore them, but I do reply to decent replies and upvote them. That moves them up above the rubbish comments and gives them a (small) reward. =)