Particularly, announcing livestreams, abandoning them, and providing no further announcement is flatly unprofessional.

Indeed, just to disappear without any explanation ... would you behave like that when you had an appointment with a friend or a business partner? Just unthinkable!

Even no other person from the whole Steemit Inc. stuff provided any further information.

You built the most commonly used App in the crypto sphere and then sunset it.

Exactly: all the new already existing and planned DApps are really great, but we shouldn't forget that we already had (and still have) a unique feature which differentiates us from all other crypto currencies and blockchains: a functioning community, a social network that gives even non-crypto affine persons the possibility to enter a until now for them completely new world. We should make onboarding as easy and simple as possible and care much more about new users than we currently do. The value of other successful social media sites like facebook is not because of any superior technology but because of the huge and (more or less) satisfied user base!