Level 9
Why is everyone starting to trade things instead of buying?...thought this was offer up, NOT trade up. Completely low offers on good quality stuff worth money and people want to trade little value for your good stuff.
Level 9
If you put a greater value on your item, let them know you're not interested.

I don't see how a trade is a problem, if you don't agree with it, politely decline.

No way to stop it.

Block specific users if you feel it necessary.

When it felt fair, I have traded stuff.
Community Helper
I had to put no trades accepted in my username on the actual app. This has cut down on the amount of trade messages I get. Occasionally someone will message me asking if I would trade.