Yes you will get banned without a single doubt for trading with him.

https://steamhost.cn/steamcommunity_com/groups/tf2outpost/discussions/0/558747922562007365/#c540742485382266453

The reason you were temp banned is because in each trade you were advertising that you're selling any weapon on page 2-7, even though the weapons might not be overlapping you are still relisting the same weapons across all your trades. A single trade for that would be suffice, you could use the Craft Weapon icon instead of listing all your weapons.

If someone declines your friend request you are automatically blocked from sending them a new friend request for a small period of time. This is a Steam feature and it doesn't mean that you were blocked by that person.

There's no need to necrobump.

Could you provide some screenshots?

Sorry but no price checks allowed on the forum.

trade.tf is not affiliated with TF2Outpost.

Submit a support ticket on the site, we don't accept appeals on the forum.

It would help if you linked the trades in question and explain why you think they don't show up for others.