An anon sms is stupid.
An anon sms gets ignored as the shite it is. You can't be bothered to identify yourself in your message then I can't be bothered to pay you any attention. Now fek off & cram that phone up yer arse ya twatwobble.
It's easy to spam voters with text messages and get away with it. If you wanted to swing voters ahead of a federal election, as the Australian Labor Party is alleged to have done in a message claiming a rival Liberal Coalition Government would privatise the nation's healthcare provider Medicare, you wouldn't send a text …
I'm genuinely disgusted at the behaviour of whoever did this, but it's arguably a bit rich to be pulling out the victim card when your own players have been implicated.
To craft an SMS to appear as a network message...I used to do that at school with people's old Nokias. You just had to prefix the SMS with some select characters and boom. Network message.
Oh how I lol'd at my mate calling up BTCellnet to rage about his credit limit appearing to reduce to zero.