I would be more that grateful if someone advertised my url and others also appreciate the FREE advertising. The only way I'd use tiny url, and I have, is to shrink the url when no other means work. You can shrink url's here and on your own website. The only thing you don't want to do is advertise your email address. You use a special email address for the internet.
So to answer your question
NO, I would NOT use tinyurl for my website.
Upon seeing http://www.tinyurl.com supported features, I pose this question:
Is the "hiding of affiliates" form/feature really a good idea?
I understand the business side, but can see possible abuse if for anything to cause mischief and I don't see where tinyurl may protect against that. Look at thier website and find: Hide your affiliate URLs
Am I wrong to think negativity of this feature? Just wondering -----Willy