Steem. Do you believe in decentralization, or sure in it?
Why steem- most free social network , why do they say about its decentralization ? We get access to it by introducing into your browser address that redirects us to the central server that has server.U hosts. We enter the password in the form below , the server receives it , and the OWNER of the server appears to access your account and your funds . OWNER can set up steemit.Com so, that your posts will not be displayed , even if they are stored in blokcheyne . A hacker who hacked server will receive all your money and be able to manage all the information at sylteemit.Com .
Password is not sent to server. Steemit has no access to funds.
if the site will be unavailable for a long time due to the DDoS attacks that will be with Steam? how users can use the functionality of the system?
Can you prove it?
https://steemd.com/ check this one out. That is one possible blockchain explorer. Steemit.com is another version of a blockchain explorer.
well, assume that no password is sent to the server. Really you can not delete the posts from the site as you wish?
There are other sites that show content of block chain. Anyone can run their own full node.
Whether there are other ways to create and change the password ?
Yes. You can mine an account and/or set any public key you like.