I miss the days when eBay was just people selling their stuff to people. I rarely use it because all I get are posts from businesses. I don't want to search through a thousand posts to find the 5 where it's some guy selling the actual thing I wanted. It's unfortunately a flooded market and very hard to efficiently use anymore. The most I see it used it, you google a thing, and the eBay listing pops up as a result. Using eBays own search function leads to a million posts of the same thing and almost impossible to sort. Craigslist at least lets you sort "Owner" or "Dealer" listings but is localized, so you lose that trade-off of market size.
In terms of customers complaints about petty stuff, in one ear and out the other, don't have time for it and just ignore it.
Shut up and ride.
Nun sacciu, nun vidi, nun ceru e si ceru durmiv