While I can understand the reluctance to use the flag / downvote, honestly I wish that users with a decent amount of Steem like yourself used that bad boy more often. My particular favorite is when the spammer says they have upvoted your post and ask you to follow... but they didn't even actually upvote! Just left a spam comment like some stranger bursting into your living room and ripping a fart before casually asking for some spare change and sauntering out. What a winner!