Where can I see how many points for winning, draw, losing?
Typically you get +8/0/-8 if both you and your opponent are active players of the same rating.
Some general info:
https://support.chess.com/en/articles/8566476-how-do-ratings-work-on-chess-com
Have no idea about the Block button
Where can I see how many points for winning, draw, losing?
Why has the Block button disappeared?