Who Do I Complain To...?

[marcus]

I knew this was a useful address to keep )

[email protected] (sic)

[Lynnie]

I am quickly losing patience with this site - my question about DIETS was removed and I was given a 'violation notice' for no reason.
I have appealed, but I'm not holding my breath!

HOWEVER:
I also recieved an abuse email from another user on/through this website - who do I complain to about this?
I'm not being petty, either... this email was threatening, therefore is also breaking the law. As it came via Y!A and from another user, I want to know who/where do I complain?

Any help appreciated, thanks.
Just to clarify: I want to contact someone about the EMAIL... not the violation notice. That's being dealt with.
Thanks.