jeremyp
Philosopher
As I've commented before he's coming at this as if he is someone new to the sector, he's going through all the easy and obvious ideas people in the past have had (and that have already failed to deliver their goals).
So far he isn't showing any signs of being able to bring anything new to the table.
He is new to the sector. Well, he has been a user of Twitter for a long time but he is new to the idea of running a social media company.
Even so, it should be obvious even to him that paywalling Twitter will definitely kill it. It's obvious to me and I have never run a social media company either.