Is it real to reopen closed account?

What would be if I would close my account? Will I be able to reopen it?

Yeah, you can reopen a closed account. Just contact support and they'll do it for you.

i did that 3 months back as my acc was closed by a hacker

Kids never use the word "hacker" correctly so your post is unclear.

In other words his password is "12345" or he forgot to log out and his brother / friend did something on his account.

That's so far removed from hacking it doesn't make any sense.

"How did you hurt your eye?"
"I competed at a martial arts tournament."
"You fought at a tournament?"
"No, no, you know what I mean, I sneezed really hard and hit my head on the wall"
"That's stupid, you're stupid."

The OP is from Ukraine. I heard a lot of hacking goes on in that area. So, it might be true. 

https://nakedsecurity.sophos.com/2016/11/08/microsoft-to-shield-world-chess-champion-from-russian-hackers/

Dude, anyone haacked me. I just asked is that real to reopen closed account. @TheRisingTiger said that his account was reopened after he got “hacked

We all know what a top secret gambit from Ukraine is.

Vasiliy Ivanchuk is Ukrainian champion. But he isn’t top secret gambit. 

After getting access to chess.com's servers, hackers always have a tough choice.

Bully a 12 year old Indian boy by closing his account, or take the credit card information of 100000 people.

For some reason they always choose to bully the little kids.

Yeah, they do.

lol

OF COURSE YOU WOULD CHOOSE TO BULLY THE CHILDREN! The difference being is that one is a crime and the other is a minor amount of tomfoolery!

Yours is closed!!!

i want to reopen my account