Well, I am surprised to hear that, because spam is far less troublesome than it used to be, and my impression was that your efforts, almost singlehandedly, were the reason Hive wasn't unusable due to uncontrollable spam.
Hive has been so reduced in userbase, perhaps not many bother to spam us.
Thanks!
A lot of the spam stayed on steem. Removing rewards tends to discourage spam but you still get mentally ill people like blipborn who persist anyway.