Should I include this account on my curriculum vitae, such like organization member or “member of free code organization”? does it add counts? if yes which part of the content of CV should I include then? 
what have you accomplished on the forum that you can highlight? have you been particularly helpful to other learners? have you contributed in some way?
Remember, your CV must scream “look, I am the better one! no one is better than me!” how can linking to your forum account help with that?
I haven’t any particular accomplishment as of now. Maybe I should complete the curriculum first so I can get have the certificates that I think can be the highlight.
volunteering can be an highlight to your CV, and teaching is a good way to learn yourself
I personally suggest making projects for other people or maybe if you are able to- make it for a local business or an actual business. Doing projects for REAL PEOPLE show that you’ve truly made things for people who needed it.