1. So you can pay your respects to Tupac and Biggie.
2. So you can help out with a great cause.
3. So you can show off your amazing art.
6. So you can hit on someone without actually having to talk to them.
I feel like the creepiness factor on this one kind of depends a bit on the person, but let’s assume it’s a non-weirdo.
7. So you can save this poor fish.
8. So you can show the world what a nerd you are.
And hopefully leave a little something extra because pi is not a very good tip on a $26 meal.