I saw this, and my initial thought was, I thought CGA was banned.
AKA Steve in Tampa
Geez, no way !!!
eBay has never really enforced this at all. There are dozens of CGA graded notes on eBay at any time.
I "report" ("prohibited....stamps, coins and currency...certified) every note that I see listed...usually doesn't make much difference to ebay..because they mostly stay on the site..many selling....but here is a seller that must have had his notes taken down...read his description
They originally started out enforcing it but have since become lax on it.