I read all the "rejected suggestions" but because there are too much I might have missed something and suggested the same thing here, sorry if that happens

1. Make people who are not logged in or banned (banned is probably already like that but just incase) unable to view trades
Why? Because if someone is a marked scammer, they will often log out and find trades and then add users from their Steam profile. So maybe do something about it and make it so only users who have logged in and not banned will be able to see trades

2. Make it so permanent bans will also ban the user's IP. Again maybe it already works like that but just incase. So scammers can't use their alts

3. Allow you to search for killstreaks in the search filter (and also when you make a trade and wanna buy something)
Should be simple enough. There is no need in putting sheens/killstreakers to the search option, the user can easily find a combo they like or just write it in the search notes thingy. The reason it's not so easy to find killstreaks with it is because a lot of people type different stuff, for examp: 1 user types "pro ks", other types "prof." and etc. (some people don't write anything at all) making it impossible to find killstreaks. You should be able to search for normal, spec, pro or any killstreak. Should work with all items and not only weapons because of the Gun Mettle glitch

4. Make australium weapons appear as it's own weapon and not as a strange weapon with Australium: Yes and some gold tag. Actually make it have a golden gun icon and "australium" in the name

5. I know bazaarTF uses it but it's a pretty cool perk that can be added to outpost: Make you able to favorite items which will automatically be visible without the need to search for them each time when using the search filter or making a new trade

6. Allow you to edit trades
Often people forget to set the qualities of items when they want to buy something and stuff like that, it's kinda annoying to close the trade and then create a new one making sure you put the correct items

7. In cs:go, remove the sticker/music kits offers items from the items list. These items can never be traded and even if you could trade them, nobody would buy it anyways and it's just annoying to scroll down 50+ of those when you type "offer" to find the "any offers" icon

8. Allow you to search for completed trades, this will help a LOT in price suggestions for bp.tf and making it easier to find sold items

9. This will also help the price suggesting feature, add an option that will allow the buyer put in the trade how much did they sell the item for after closing a trade. You should also be able to choose between "complete trade" and "close trade" when closing a trade, complete trade means you sold the item and then you can (but don't have to) write how much did you sell it for, if you choose "close trade" it will close the trade and then you can put the reason, for examp "relisting item in a different trade" or "decided to keep the item for myself"