Dear @crypto.piotr... no recommendation as of now... I hope that some of the witnesses will comment here and explain briefly in a few sentences what their strategy is..

That's how I understand proof of stake with witnesses.. if I am mistaken someone should correct me...

Yes.. in the future we could change back, but if he controls the 20 witnesses he can do whatever he wants to the chain.. hence eliminating the witness process and taking over control for ever.. that is just how I understand it.. again folks.. correct me if I am wrong...