[support] user_autocomplete and privacy

[Ivan Sergio Borgonovo]

I'm writing a module that should hide user existence according to
their privacy settings.

I've been able to hide names (overriding phptemplate_username) and
users profiles (404 with hook_user view).
That's far from clean but at least it works. Is D7 any better in
this area?

But I'm out of reasonably clean hack to hide users existence in
user_autocomplete.

Everything is guarded by a user_access, 'access user profiles' and I
can't see any other way than hacking core.

-- 
Ivan Sergio Borgonovo
http://www.webthatworks.it