Look dude, I get you're frustrated, but given how rife the game is with botters(both autonomous gold farmers and lazy players), coming right out and saying "yeah I was botting" is a surefire way to get a whooooooole lot of grief tossed your way.
Way I see it, you dug yourself a tidy little hole by getting banned. Then you straight-up admitted to the public eye that you have, in fact, botted; that was you jumping into the hole you dug. And now the general reaction to your admittance is to shovel the dirt back into the hole.
They're not going to make an OSX-native client. There isn't a large enough portion of players running it to make it worth the time.
Here are some threads on the matter from the old forums: 1 2 3 4
There might be more, but honestly it's after 2 in the morning for me, and I don't really care enough to dig deeply into the mess that is the old forums.