Yeah it is. The fees have gotten outrageous, and the sellers have no rights anymore at all.
I used to sell a lot on Ebay. The last thing I sold was an old trailer plug style (early 8274) Warn remote. I listed it "as is, no returns" It worked fine, but that was pretty much my standard auction wording.
Seller said it didn't work. I ate $30 shipping it to him, and paying for return shipping. It worked fine. Obviously he decided he didn't want it, or more likely found one cheaper elsewhere.
Haven't sold anything there since, and will not.
FB trading sites will eventually kill off ebay.