This older Community post warned buyers about a serial scammer and twice-jailed criminal who has been selling faked stamps on Ebay for over 10 years :
https://community.ebay.com/t5/Stamp-Collectors/British-Stamp-Cartel-Philip-Ryle-fraud/td-p/26683757
He is back, and still selling the same fakes - typically regummed, redistributed gum, or cleaned-off cancellations, presented as mint or MNH. This long-running Stampboards forum topic shows his recent and current IDs and his history on Ebay including 90+ previous IDs :
https://www.stampboards.com/viewtopic.php?t=38353&start=850
