I don't know how people do business in Estonia, but providing someone else with "bank accounts to cash out paypal funds" seems very strange to me, and I don't know if I'd do that for anyone, even if they were a friend--and by your account vareole was someone you met on a forum and worked together doing who knows what. If you really are two different people (and you're not), I have no doubt you'd be aware that he's a scammer.
Could be hacked or otherwise illegitimately obtained PayPal accounts or funds of questionable legality. Probably wouldn't want to use their own bank account with something like that.
Keep in mind that colires is doing "business" here (selling AWS, PayPal, exchange accounts etc) in a way that you can't really do with your real identity.