As the title says, just curious.
Not sure what you mean exactly but If I understood right you mean using Shorten link services such Adfocus , Adfly etc ... You can check here
Unofficial list of (official) Bitcointalk.org rules, guidelines, FAQ So as you can see it's not allowed if you meant this :
4. No referral code (ref link) spam. [1]
5. No link shortners that requires users to view an ad.
~ Madness