Why do you give a shit if G ignores you? Why does it bother you?
I think it bothers him that all of his repostings aren't being acknowledged whereas all of his more even-handed posts can still be viewed, essentially defeating the purpose of reposting the same gibberish over and over again.
Your posts can still be seen in quotes even if you're on ignore, so all of Pro's spam gets tossed out while his serious attempts at conversation (which he later tries to claim is troll-bait) are filtered through by me--or anyone else that deigns not to utilize the "ignore" function--when we quote him. It effectively negates all of his attempts to make other people curious enough to turn off "ignore."
That probably pisses him off to no end.