I no longer want to trade with a user because i think he is a scam or there is always an issue with him and his trades. How can I go about blocking him so I no longer have to deal with him.
Putting their onion address in the “Ignored peers” list in Settings will grey out their offers and show you a warning if you try to take them.
Will this also block that user from taking your open offers?
yes, they won’t be able to take your offers