Deliberate greed
So thats why AT&T locked the phones in the first place, in order that they can make money for unlocking. Corporate gouging at its worst.
And please dont tell me they are subsidised. There is no such thing. Its all priced in the package. Locking/unlocking phones is just another revenue stream, by design.
The guy was doing a humanitarian service in helping avoid huge costs in unlocking. Should be honoured by Trump. Oh wait, was his name Mohammed? No chance then.