You forgot about Zappl?

That once upon a time tried to do an ICO where they claimed to be worth $30000000 and only accepted minimal $10,000 buy ins.

Micro blogging isn't revolutionary on Hive... and actually not a great idea imo because there is not enough users here to generate interest for it and neither zappl nor dbuzz or threads look at all polished enough to compete with the almighty Twitter bird.