Meanwhile, as postage rates and eBay/PayPal fees keep going up, it will cease to be profitable to sell anything on eBay
I tried selling stuff in the early 2000's and the fees were too high to make a profit, I've looked at it again recently and they seem much more reasonable than they were then. I guess it's a matter of perspective.
Why is this news?
Slashdot changed their motto to "news for prosumers, stuff that never mattered" a long time ago.
eBay's final value fees for non-store accounts have been a flat 10% throughout most of this century, and store FvFs range from 4% to 9% depending on the category. Of course, they also charge the same rate on the shipping that you charge the buyer as well. At least if an otem goes outside the U.S. though, they only charge based on the lowest domestic rate shown in your listing. So if you were to ship a 10 pound parcel off to Australia, and your listing showed domestic "free" shipping, then you would not be charged anything at all on the postage the buyer paid.
And then PayPal fees on top of that are either 2.9% plus 10 cents or 5% plus 5 cents (if you have a micro payments account to use with items under $12). The standard rate seems to be on par with Etsy's Direct Checkout and the former Google Checkout (though initially GC was actually lower than PayPal...which would explain back then eBay's lies about GC not being an approved online payment due to "safety" concerns.