I do not believe it.
I just (a few days ago) posted my ... 50,000th tweet.
Who woulda thunk?
There are ideas I care about. And twitter is a great platform to have an ongoing discussion with (mostly) likeminded colleagues. Thousands upon thousands thereof.
It adds up to a lot of time.
BUT ... the transmission of ideas to a wide audience is how I have spent the last 38 years of my life—38 years ago, 1977, was when the McKinsey project that led to In Search of Excellence was launched.