"Why do you believe that as a result of my complaint that Max did not ask both Joe and Catspaw to leave?"

I believe Max didn't carry out your instructions because:

You've been asked to leave and you refuse. You disrepect Max. I expect he knew you weren't capable of leaving or ending your crusade even if you wanted to, but I expect he felt he needed to give you a chance to do the right thing.

You have a long history of complaining about inconsequential things. Control issues, probably.

Max understands Catspaw. Spaw posts with a certain style of humor which you don't understand, and he doesn't bite a poor pet peeve and and hold on like a rabid bulldog on crack, with blood and foamy saliva dripping all over the path of the poor, severely impaired marauder.

Joe just tries too hard and gets frustrated. I think he's into redemption. Maybe it's a religious thing. I think it might be fun if Joe and Catspaw swapped personalities for a couple days.

Max is afraid of Catspaw, who has threatened to kick him in the balls on serveral occasions. I mean, if you take his posting toward you literally, you have to also see this threat to do bodily harm to Max as literal, right?

And the number one reason? Because it's just stupid.
Max has never asked anyone to leave because... no, I don't think Max has ever asked anyone to leave before you.
Max has never done anything here just because someone asked him to. Max listens, weighs suggestions, ignores attempted pressuring and decides what he thinks is right, and Max does it.

True, action might come a couple years later, but other than real life coming first, I think he knows one decision will affect many other things, like butterfly wings. We all may want him to 'get on with it', but if there's one thing I've learned about Max over the years (which frustrates some to no end), it's that Max will not be manipulated. He will not be pushed. I get frustrated when 'fixes' to 'problems' don't happen fast enough, but I respect him immensly, partly because he can't be pushed to act immediately. Jeez... maybe I ought to write him in for President in the next US election.