To unhide post caused to be hidden by downvotes, you have to upvote it more than it is downvoted. The downvote can also be reset to zero, and by this, removed.
Flags are just downvotes. If the reward sum drops below some negative number, the steemit.com interface hides it.
Yes, @sneak is attempting to censor this post, because it makes him, and his buddies look bad.
@elfspice thanks for the explanation I wish I had a whale upvote for this post!
I've been discussing this with others and they didn't know about this and asking if this is real - I am sharing and my wish is for others to share this too.
Perhaps in the days ahead I will post details and quote some of you non-flamatory comments and request steemians to consider supporting Calibrae - thanks m8, and Cheers.