[The Judge]

Crunchyroll don't give out info about you lol. Probs got an email changed to: [email protected] email.

Changing his infor is a dickmove tho. Just use it and keep everything the same.

Replying to his email might give him your IP. Depending on what email client you use tho.

[Raz3r]

Op, don't worry, this kid won't do shit.

[Raz3r]

Guy can't do anything. So what if he has your IP (probably not) the only thing he would be able to do is use a geo-locator which can be easily off by 10~20 miles.
It's not like he can call the cops and be like "This guy hacked my account his ip is: 127.0.0.1 go do something about it."

Next time you use somebody else his account don't go around changing the info. As long as you can watch your shit it's fine.

If he's got his IP, then he can ISP dox him.