Because more and more weapons are entering the game everyday, metal is therefore more redely availible making it easier to obtain keys. because keys are at demanded and considered a "commodity" of Tf2. the price is then able to rise because there is an extrodinart amount of metal.
The ways this problem could be tackled is extremly hard all you could do it create a new commodit with the same intresests which are harder to get. e.g make chests and chests keys
so that people become more intrested in something else

i got a #69 pencil pusher im selligng :D

ive seen peopl offer 26 on gifted buds today

Well if you need quick keys to get a nice offer i can see why they're quite helpful, but yea, +25% should be banable in my opinion.

Is their an option so set to world wide?

A person named MattN Sent me a freind request and said i have been Duplicatings items on team fortress and some one had reported it. He then said give me the item so i can scan it.

https://steamhost.cn/steamcommunity_com/profiles/76561198075593450/
I said ok if you send me an email assuming you have it because well you need it to form an account ill give you the item..

he then said it will say you will be getting banned. So i said ok let me Prnt Screen this whole chat and then he said ok good bye in another language and went offline?

Help is this a scammer?