I found out this morning that I was banned as well. I have 2 accounts, (75's on both accounts) and one of them was permanently banned due to gardening. I play on either PS2/Xbox and of course don't use 3rd party software. I counted this morning how much I've spent in monthly fees alone since I began playing FF11. It was $2,013. For the past year I've spent $55 a month.
My response to SE is two fold. Since I was told today by their C/S rep that she "has never seen a permanent ban be reversed", I am trying to get the word out to as many gaming press outlets that will cover this story. As stated before, bad press may be enough for us to be heard.
Secondly, I'm voting with my wallet. My "main account" is not currently banned. I suppose I could continue playing, but I'd always worry about the same thing happening, after all I garden on that one just as much. However, I cancelled all content id's and will not come back to ff11 (or ff14) unless this is resolved. There's no way I'm going to risk giving SE more money, and more time on this game only to have them blindly ban my account for simply using legitimate game mechanics.
On a humorous note, I suppose I'll take the $50+ a month I was giving SE and start up a Match.com account to get a girlfriend. Although history shows I get banned from girlfriends pretty quickly too! lol
Best of luck to those involved in this banning - I was so looking forward to FF14 and more time with my friends in 11 but it's not looking like I'll be coming back to any RMT-related... oops I mean Square-Enix related games.