I've noticed this too, and I've also noticed it stems from their team members. https://news.ycombinator.com/item?id=22614144
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[0]: https://tools.ietf.org/html/rfc6797#section-8.4 sftp_phone() {lftp sftp://user:DUMMY@{{ IP_OF_PHONE }} -e 'set sftp:connect-program "ssh -a -x -o KexAlgorithms=diffie-hellman-group-exchange-sha256 -o MACs=hmac-sha2-512,hmac-sha2-256 -i ~/.ssh/id_rsa"'}
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