As "hfjacinto" pointed out, you need quite a few posts to trade here.
I don't collect coins but rather banknotes. I've traded very few (over decades) & as "hfjacinto" wrote, it can be either a "hit or miss." Most of the problems arise over collectors' inconsistent/variable grading/photographic & communication skills.
There is another site you may want to try called Numista:
https://en.numista.com/ I believe they have some guidelines posted there. Good luck!




















