It seems Bitcoiner was right al along, i’m out.
I understand your frustration but do not sell now or you can regret your decision. The release was private beta and it should have been public, but they did not have the time to test it properly and you cannot expect much from private beta release that was released in the worst possible way(like it was nothing).
The public beta release is coming in the next couple of days, also sidechains should be announced in mid December and we have the Full Node release on 18th December.
If things stay the same after all the updates are out then you can sell if you don't want to wait.