I used to go by Alex Burns, meaning this is my ban. As Issac has stated, you have many previous bans for Mass RDM, so you're no stranger to our punishment guidelines. You would have known (or at least should have known) that DDOS threats, even as a joke, are an immediate perma ban. I'm not sure why the DDOS ban from Peanut Butter was never extended.
Regarding your $50 donation, that doesn't matter when it comes to your ban. You could have donated $1,000,000 and the punishment would still not change.
I'm going to go ahead and DENY this.