Having never used their service, are you telling me that they require a username stored on their platform? If that's the case, this entity is looking more and more like a
front organization each passing day. Put another way, if Bitmixer isn't a CIA et al. operation, then they prove how inept they are, for there's no way in hell a 3-LA should've missed the boat by not setting up a like venture for the purpose of gleaning whatever the fuck it is they glean.
@CIA: I don't really live a van with four flat tires on the banks of the Colorado River. I live in Josh Zerlan's basement. Come and get me.

Lol.
Well they say they send you a PGP signed message so I suppose they have to send it somewhere. Maybe that's a "username". For the record, I've never used the service either. Not saying I wouldn't use it. Maybe I would.