I've bought several thousand items on eBay since 2000. But I hardly ever use it anymore. I usually find better deals on Amazon (local and US), local retailers, online stores, Kogan, Aldi etc.
Just today I was pricing a $1500 drone, $1499 on eBay and $1480 on Amazon. Bought the Amazon one.
I have not seen a decent discount code at eBay for a year or so now. I don't like their "eBay Plus" program (not an Amazon Prime fan either though). Tried eBay Plus just to get the discount, and straight out again.
I don't like the way they are hiding which items are discounted under their eBay Plus program. It's not clear. The same goes for the few non-eBay-Plus discount codes: it's not straightforward to find the discounted items, at least not for me, a 20-year user. And they allow price jacking during their sales, which is illegal. I hate that. You need to keep items in your watch list, and make a note of the usual price as a "note". Then watch how the prices bounce during the so-called "sales". It's sickening.
I don't like the way overseas eBay sellers can sell to Aussies and not declare the GST payable. Not all of them do this, but for example I was able to go all the way to checkout and cancelled at the final screen, on a $1000+ item, still no GST or import duties payable statement anywhere. Unwary people could get a nasty surprise from Customs.
Their software feels dated and clunky. I see that their US customers have a slightly slicker interface (I have Aus and US accounts).
Anyway, I'm drifting away from them, made only 2 purchases in the last 6 months, whereas I'd usually have made 50.