You need to be logged into Facebook, then try pressing the button on the forum. He will then have to click the approval in Facebook (the first time he uses it).
Coder, video game industry veteran (since the '80s, ❤'s assembler), arrested - never convicted hacker (in the '90s), dad of five, he/him (if that even matters!). https://deluxepixel.com
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https://deluxepixel.com
But through Facebook is possible