I think Apple intended it to allow people to understand when a message was secure or not

I don’t even think it’s security; It meant the messages are free. A large part of the early marketing for iMessage was that it bypasses the sms network entirely and that you could text as much as you want even if you didn’t have unlimited texting on your plan, as long as you were talking in blue bubbles.

it’s pretty easy i just send out a bunch of messages and either get nothing back or creepy dudes being weird and sometimes unsolicited creepy dudes being weird and then i get discouraged and don’t go back to that app for a while