My pet peeve is when someone has a pet I want in a group labeled trade and I have a pet they want of same value or even overpay and they cancel without a message. This particular example had it in their rules to send with a message, so I stated why I wanted the pet. They canceled without message. I offered a vr for their rare pet a 2009 for a rare 2019. They let the trade rot. I canceled with the message suggesting they move that pet to a locked group if they weren't interested in trading.
Their reaction? Block me. Good grief. I guess my mistake was assuming they wanted to trade for pets, not be specific with who they desire trading with.
That said I am guilty of long trade rules, but it boils down to not trading away pets I only have one of. The rest of the rules kind of support this rule or make it easier for me to review the trade to make sure I still have one of that pet or item left after the trade is accepted