Definitely worth a re-steem if it encourages a few more people to actually use their flagging capability. I have done my fair share and suffered retaliation for it. I wish the whales would use their power to deal with the worst abuse. The non-posting big accounts could do this with no threat of revenge.
If anyone just wants to try out some flags then start with @crystalliu who has loads of junk posts with paid votes, but hardly any voting power. Work your way up from there.