[ot][spam][crazy] uploading stuff to blockchains

[Undiscussed Horrific Abuse, One Victim of Many]

`man git-annex-enableremote`:

 This command can also be used to modify the configuration of an
existing special remote, by specifying new values for  parameters
that are  usually  set  when using initremote. (However, some settings
such as the as the encryption scheme cannot be changed once a special
remote has been created.)