> So basically, he's providing proof that he created a year ago.

I was able fact-check his claims, since I am from the city where Tesonet is based, and found none of them to be completely false or baseless. It turned out to be an open secret in the local tech community[1].

[1] https://i0.wp.com/vpnscam.com/wp-content/uploads/2018/08/201...

From what I remember, that PDF was also created by the same guy and shared on several sites. ProtonVPN at least came forward with a chain of evidence for why there would be a connection, even a weak one, but I don't recall NordVPN saying much at the time. Still, the fact that the co-founder of a VPN company is trying to dig up dirt on other VPN companies doesn't make me trust his at all, it just seems shady.

> Still, the fact that the co-founder of a VPN company is trying to dig up dirt on other VPN companies doesn't make me trust his at all, it just seems shady.

I think it's a normal practice in every industry to try to find out who your competitors really are. Whether that information should be made public or not is a different question, but it doesn't make it inherently false. Instead of naively believing in carefully crafted rebuttals, people should try to verify the facts by themselves.