[ljak]

This is an option that can be enabled on a per-subreddit basis. It's not very popular since people like seeing how popular their posts are.

[3rd3]

I mean comletely removing publicly visible points, from the profile too.

[tripzilch]

afaik the scores are just hidden with CSS, so you can see them if you really want, and I believe that RES even has an option to enable this without having to dig into CSS wizardry oneself.