Only a small number of users actually have the ability to engage on Twitter in a significant way
Define "significant", please. You don't get RT'd or @replied to on three quarters of tweets? Not surprising. Your friends read your tweets and know what you wrote, that's still significant (as happens to me all the time). I love being able to keep up to date on the goings on of my friends across the country. It helps me feel connected to them. I don't necessarily @reply or RT each of the ones I read.
END USERS DON'T GIVE A DAMN
they'll end up having to chose the platform the developers adopt.
I think it's adorable how self-important you are.
Apple only got where it's at by copycating.
Some people have a great ambition: to build something that will last, at least until they've finished building it.