Sometimes when you post or comment, the website is not posting or commenting, but if you ones have seen your post or comment, it will be there forever on the blockchain. There are no central server and NO ONE have the power to delete what you post or comment, other then you, until it get locked forever.
The FE movement are growing everyday, I am 99% sure of the flat earth. You are still living in the illusion that Illuminati pulled over most of us. Research it. Also bear in the mind that it took me almost one year, since I first heard of the FE theory till the brainwashing finally got removed from my mind.