I haven't seen a discussion on this yet, but I also haven't really seen it used in answers, so I figured it was worth asking a question for link-reference in the future.
So, what's the policy on using URL shortening services to reduce characters for golfs? This question made me think of it. Answers could easily save a bunch of characters, from something like:
I can't point to anything technically wrong with it, but it just feels so... cheap.
If there's no policy yet, what should it be?