If it was permanent ban, then there is nothing that the staff will do. Refer to this thread:
https://steamhost.cn/steamcommunity_com/groups/tf2outpost/discussions/0/828939978406529495/

Permanent bans are just that, permanent.

Neither of you will be unbanned. Permanent ban means just want it says.

On which count? I know for a fact that alternate accounts are not allowed. The gray area around expired items is the only time that alts have been allowed, and I wouldn't give a guarantee that they're totally okay to post with. The rules are in place to disallow one person having an advantage in people seeing their trades, (no relists, no autobump scripts, etc.), and using alts definitely falls into this category, else there would be no reason to put out trade limits and 30 minute waits on bumps.

Also, the rules are not all inclusive and can never be. Just read the bottom of the rules page:

"Note: Most rules are common sense and it would therefore be impossible to list all the things you could do to get yourself banned. This page is not acting as a complete list of bannable offenses — it instead aims to clear up some confusion about those rules that may not be obvious. All moderators and admins have the power to close trades as they see fit (with reason, of course). No ranks exempt you from the site rules."

This was done because of the recent surge in the number of phishing attempts. All website URLs were given that warning and the staff must manually allow each site they deem needed to be whitelisted. They're still adding more sites to the whitelist and may or may not get to the spreadsheet site.

If there really was a blacklist, then the link would probably not have even been posted at all, red border or not.

You may not use multiple accounts to post trades if it is all your own inventory.

The only common exception would be if they were expired crates that must be kept on an alt account, and you would need to state that they were on an alt account.

That's one site and not the trading community, and you yourself said that random rares weren't working.

Until there is an item that is readily available with a purpose that isn't cosmetic, then it isn't going to happen.

Just like random rares, HUDs and Emoticons are subjective in how good they look and will never have enough people hover on a fairly concrete range in terms of value.

That would be an easy way to get a permanent ban.

Sadly, the rules do not allow people to just give things away. You'll have to use another site if you want to just give things away.

I recommend TF2R, just set a raffle for a few minutes and low amount of people and you'll get some takers for sure.

Alright, this topic has been necro'd three times now, probably a good idea to lock it.