I'm with you. I'm here since January (2017) and I observed the increased of the spammers and their "strategies" in time. The spammers seems to be increased with the growth of the value of steem, but I noticed the number of the spam comments grow up also when a content has an "interesting" payout or the author has an high reputation.I have to say that I'm really boring to see many spam comments on my contents and I started to flag them (for some months I replied with a "friendly" tip abut this rude way, but now it's really too much)