'Hi' seems to be almost as much a convention for emails, as 'hello' is for answering the phone. I tailor my greeting according to the recipient. Oddly enough, my older friends and relatives have taken to 'hi' without hesitation or objection.
Gogglebox Stand Up To Cancer, Andy Burnham.
Not really a scam or fraud, but I wasn't sure where else to put it.
doesn't bother me at all really, hello for the phone, hi for email.

