If you end up being the conduit for something worse (everything thing from malware that just plays ads to people, through to malware with more damaging intent, up to the far more objectionable porn and other things that you might have trouble squaring with your conscience even if it isn't your fault (because you did everything you thought necessary to make sure that didn't happen).

If you setup an anonymous redirector, don't just put it out there. You need to monitor it for some of the worst things it could be used for. If not for legal reasons, then because you don't want to make things easier for certain sorts of people to hide.

(I'm not saying don't set one up, feel free if you think you can monitor it to your own satisfaction, just be careful with it, and at very least make sure it is very easy to report links to questionable content to you so you can nip them in the bud ASAP)

Are you?