so i tried it out for the first time last night, was able to add a pin with no problems.

for some reason i've tried two different pins today and i can't get it to work, i receive the notification but when i accept it, it does not add.

are there storm specific issues for bbm?

There has been a problem with pin-to-pin messaging and BBM messaging today. Don't know it is has been resolved or not

that makes sense.

You can follow the updates on this outage here:
BB PIN and Messenger outage 12 Feb