I have been on vacation in Thailand and busy until today. I am happy that Toughsox replied in another duplicate thread I generated that has been archived. I'd like to reply to his response.

Firstly, I am curious whether TF2OP uses the IP address of a user to determine whether he is a alt of another account.

Secondly, although my IP may have been same at some point as the banned user https://steamhost.cn/steamcommunity_com/id/JoeyCahill/, there are various ways to tell that I am in no way related to the banned user. This may be complex to determine and time-costly for other cases, but I am posting these here so I can appeal my ban.
a) I have over 800 hours of TF2. (It seems to be a lot for me) No one would spend 800 hours on a alternate account that they just use to create alternative accounts on TF2 websites.
b) I do not know the banned user, nor have him on my friends list. If a main account would create a alt, he would surely add him as a friend to funnel items. (Although I think it is possible to also do so by trade offer links)
c) To prove I live in China, most of my Steam friends are players who live in China and play in Chinese servers. I have friended many because we often play together in these Chinese servers.

Lastly, In the future I will try to access TF2OP without using a VPN (If this appeal goes throw). It is very slow to do so but I am willing to sacrifice the fast load time for access to this website.

I am thankful for Toughsox's patience in replying to my thread after closing my appeal. Hopefully if he reads this he will reopen the appeal. Also, if any admins were to see this reply, please try to contact Toughsox and ask him to look at my reply. I would greatly appreciate if you can do so. Thank you very much.

Also I'd like to note the fact that the website's rules does not state a VPN is not allowed.

Would anyone please be kind enough to reply and help me out? Thanks.

I have recently unable to come in contact with tf2 op staff regarding the fact that I was banned for "being an alt", which is clearly untrue!

A few days ago I logged onto outpost saying I was perma banned because I was an alternate account of another outpost user, his profile page I was unable to view due to my ban. I filed an appeal stating I was confused about what was happening and I didn't have any alts. However, the admin replied saying I was "clearly" a alt of another user, which he sent the steam profile link of: https://steamhost.cn/steamcommunity_com/id/JoeyCahill/. This user lives in Australia. I live in China! I was greatly confused. The admin might have thought I was an alt due to the fact that I am f2p and my items are gifted from my friends. I pondered a bit and realized that I have accesed Outpost using my VPN service. I believe that is why my account may be flagged as an alt of another. Different VPN accounts and users go through the same VPN server. The admin closed my appeal and I was unable to communicate further to explain. The admin's name is toughsox and I hope through this I can communicate with some admins and fellow outpost users.

A few days ago I logged onto outpost saying I was perma banned because I was an alternate account of another outpost user, his profile page I was unable to view due to my ban. I filed an appeal stating I was confused about what was happening and I didn't have any alts. However, the admin replied saying I was "clearly" a alt of another user, which he sent the steam profile link of: https://steamhost.cn/steamcommunity_com/id/JoeyCahill/. This user lives in Australia. I live in China! I was greatly confused. The admin might have thought I was an alt due to the fact that I am f2p and my items are gifted from my friends. I pondered a bit and realized that I have accesed Outpost using my VPN service. I believe that is why my account may be flagged as an alt of another. Different VPN accounts and users go through the same VPN server. The admin closed my appeal and I was unable to communicate further to explain. The admin's name is toughsox and I hope through this I can communicate with some admins and fellow outpost users.

Thank you.