Personally I'm not a fan of people sharing Bitly links, etc rather than just link to the end result directly. I don't like the idea of being tracked, cookied, etc. Regular links do the job just fine.

Makes me wonder whether there's a market for a privacy-friendly link shortener. That intentionally does not track people, set cookies, etc. I know that would limit the functionality, but the signal "I respect your privacy" might make up for it. You could even add privacy-specific functionality such as hiding the referrer, etc.