I have botted off and on for over 8 years (no longer). I made $1k a week in 2007 from botting! Those flying mounts made me tons when people bought gold. I do see the frustration in BG's thought and I never did those. When others depend on you, you can't just bot PvP and be effective. Now, I am not saying what I did wasn't wrong, I am just saying I understand. Yes, what I did affected others because of the Market, however I do not believe it to be as intrusive.
Funny thing though, my entire guild knew I botted, and other than that stint in 2007 were I made a ton of money, all my mats and gold went to help the guild. Yes, I know, no excuse.
I did find botting quit exhilarating at times, no idea why.