It's simple you get +50 ZRC from commenting on post/anime. You get +50 ZRC from creating posts for example like this one. You get +50 ZRC from getting one of your comments/posts liked by anyone. This is how you get ZRC points but don't comment to fast on a lot of post or anime or you could get blocked for spam. However now you can comment only 3 times in a minute.
Hope it was helpful and you like it.