Can I do this?

[nofat.co.nz]

Hey how do I / or can I do this....

I have a normal forum - and then I have as part of that forum a hidden/secret forum - I don't want sites that we have posted links in that secret section to be able to tell (via google analytics or whatever) that we are linking to them

Is there any way to either

ban url links from being posted by members in that hidden forum section (while keeping the rest of my forum normal)

or

somehow blocking the other sites from being able to see that we are linking to them - like vBAnonymizer or something like that - BUT - just for that hidden section of my forum - I still want to have the rest of the forum normal

Does anyone know what I can do?

Thanks