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That aside, it seems like an easy way around that would just be for Apple to adopt RCS in addition to iMessage.
Also, far simpler to take care of beeper, just make all the message bubbles the same color. They'd lose their entire userbase if that happened.
But I agree with the earlier point, that it is a closed platform. If you want to respond, I thought it requires a phone number now in addition to email? It used to at least. And if Twitter doesn't like you, why is your ability to communicate with an official regulated by this private company? And Nitter is likely to get shutdown by Twitter any moment now in the same way as Apple is trying to shutdown Beeper.
Unlike Apple, the government has to meet the people where they are.