[mrkramer]

>Gmx is popular in Germany but I think it was always a bit niche outside Germany speaking countries it was relatively unheard of at the time.

He also used upload.ae to share draft of Bitcoin whitepaper[0] and upload.ae was literally unheard of. I didn't see anybody saying they used it or knowing who owned it. My assumption is that it was run by Satoshi's friend or somebody that he trusted.

[0] https://www.bitcoin.com/satoshi-archive/emails/wei-dai/1/