[matt_morgan]

There are non-creepy reasons for click-tracking--e.g., you're a nonprofit supporting a cause, trying to identify preferences of your supporters. But caution: it might become creepy when you /appear/ to be hiding the tracking from your supporters. Why not give them readable URLs and be totally upfront about what you're doing?

[x1798DE]

I don't think creepy stuff is less creepy if you're not doing it for profit.