Originally Posted by
Sopwith
Most of the time when I receive these text messages it is after I arrive at my destination, on the delayed flight, and turn my phone back on.

The only message I've received was a text informing me that IFE didn't work. It was sent around 3am. It woke me up.
Certain events are okay to wake me up for. Nothing from Air Canada is. Send me an email, I'll check it when I wake up.
And I don't even remember signing up for anything like that.