"Concede"?
I think the point is to annoy people, get negative attention, and to try to mess up companies that are trying to make it through the difficult start-up phase. I don't think "conceding" is part of that equation. What would there be to concede? He is accomplishing at least some of his goals.
There are stocks where I have been a long-term critic of the CEO. One is where I think there really is potential if the CEO would just see the path forward. The CEO of another is an outright crook, but I like to buy at a certain price and then sell just a bit higher -- and I post my every trade.
I have stopped devoting a huge slice of my life to any of them, because I realized that posting is only modestly rewarding in terms of enjoyment. But that's me, and I recognize that others are wired differently or face different challenges.
I just wish they would do their thing on some other board.
GO MIKP!!
I am obviously NOT an investment advisor.