It’s an open marketplace, every open marketplace in the world has fraud on it and G2A is no exception. Doesn’t make it any less legitimate than other online marketplaces. But to address your three links, the first one is from 10 years ago which is before the G2A marketplace existed, the second features a developer (Mike Rose) whose game barely sold any copies on G2A as found during the 10x fraud challenge and the third is actually a legitimate claim that G2A paid out. However if 32k is the worst we can come up with that’s pretty low comparative to the amount of business the site does.
If fraud is so much more prevalent than other marketplaces then why hasn’t the EU opened an investigation?
Prime age to get their information from Facebook.