as a seller Im noticing most disputes are going automatically to the buyer without the seller or buyer being contacted, in fact based on no info at all. Im not to worried because I sell mostly FE these days but seriously this is not a professional way to run a market place.
I have had to dispute 2 purchases and only needed to have a mod resolve 1 of them. In both cases the mod appeared to start a group chat with me and the seller. The first one was resolved as the goods eventually arrived (was an international sale so was understanding of the delay) and the other the seller only sent me half and would not respond to me or the mod so I won the dispute. Its not a large experience but it seems fair to me.
I personally would rather pay more then FE because I prefer the extra layer of security.