Jackp = RaptorRobot
I advised an admin and they didn't seem very interested. The short answer to your questions, would be yes - it'd be nice to have an admin pay attention. The difference this time seems to be that the vast majority of his edits are to certain pop culture articles - a particularly odd obsession with B-grade female film stars. And horror films. Ie, apart from the odd change to Canadian articles he is not being a major disruption. He loves to dab London by adding England after it (ie, London, England), but will often remove Australia from Sydney. I spent a lot of time following his edits and reverting MOST of them as they were predictably poor. A minority were OK and I left them. But i soon got tired of this, particularly as he would just reinstate the changes, i had no interest in Chloe Seivgny or whoever! 
I built a lot of evidence. But I don't know what to do, he's currently just a poor editor, not a major disruption like before