Possible problem with steam mobile

First off I would like to say that if they fixed it then to just delete/ close this trade.

But anyway the steam mobile is a very useful thing as we all would agree, but it's possible to be both on steam and steam mobile. And when I tried that (during when you needed to join the beta and get the invite) that if you type through steam mobile the message does not show outgoing through the computer steam.

Now I haven't tried it lately to see if they fixed it, but couldn't that be used to scam someone and then post your screenshot of you not saying certain stuff?

Interesting point.
Its normally the scammed person that does a report, with screenshots or not. Scammers almost never make screenshots. Tbh, on me such would raise alarms on some form of counterfeiting. In theory it could be abused, in practice it doesn't work.