So, what did you buy from Kinguin and who was the seller?
Game are a large company based in UK, a little different I'd say. I did use a highly rated seller, it was the developer who revoked the keys because they were stolen. Just because you haven't had a problem, doesn't mean no problem exists. I'm happy that you haven't had a problem and I hope others dont, the choice is there for people to make.....
I've never had a revoked key from them. That's probably due to sticking to sellers with a positive rating and this won't happen. People have bought keys from Game that were duds, so, with your logic you should stop using Game!
Yup... it is, I and many others have had keys cancelled by Steam (stolen) and also received keys which had already been used. I'd prefer to pay more and avoid any risk..... I'm sure some would prefer to take the risk to obtain cheaper keys, they have a choice, as we all do.
Is Kinguin like G2A?