Leaves database garbage behind after uninstalling

I’ve seen a lot of bad plug-ins, but I feel like this one is actually malicious. I had to pull out all the stops and install from a backup to get rid of the “wp_wsm_xxxxxx” table spam this thing leaves behind. There’s like a dozen or more of these that can’t be dropped even from phpMyAdmin. I really wish WordPress would do something about bad actors like this. So much wasted time on a plug-in that frankly sucks.