Thank you Toughsox for your help in resolving this matter! He did an excellent job addressing my situation and my account has been restored after submission of evidence of some account shenanigans that were going on.

Here's a link to my backpack.tf https://backpack.tf/profiles/76561198008634783
If you click on the historical view you can see that I didn't start playing again until May.

Toughsox I'm not sure how to go about this properly without sounding whiny, but whatever information you have that is telling you that my account is an alt account for some scammer is wrong. Again i'm not sure how I would provide proof of not being this other person? I have only one steam account and it's this one. I've had it since 2009 and only recently got back into TF2 several months ago to play with my son. Maybe look through my backpack.tf history? Or you might have some other way to verify my identity?

Hello, I've tried to appeal the ban on outpost but haven't had any response there so thought I would post here. Anyway I've been on steam since 09 and never used outpost before. A couple months ago I was told to give it a try and when I signed in with my steam ID it said the account was already banned because it was an alt of another banned user. I can assure you that this account is indeed not someones alt and had never used outpost previously. I'd very much like to check out some of the tools outpost provides but alas I cannot. I'm not sure how i'd go about providing proof of not being someone else???? Any help is appreciated.