The iMessage model? Somehow make having a Twitter brand Twitter account into a status symbol. Turn the screws on monetization while giving the product away for free to VIPs. Banish the poors and undesirables to the fediverse, where they can green tweet as long as they like.

the imessage model works because its a "status symbol" that actually isn't: the majority of people in America have the blue bubble (and way more among demographics that care). this in turn enables building cool extra features because it's a "status symbol" but actually common enough for them to work, even though both parties have to have an iphone. this produces a network effect, almost like a social media platform..... oh wait