If you have a take-a-penny-leave-a-penny jar, and somebody comes and takes 500$ worth of pennies. Do you think they are possibly abusing the system?
Or if someone said "Hey guys I brought this cake in for everyone to have some." and then someone later said "Oh, I stole the cake because I have some friends who wanted some cake. In fact they wanted the cake more than you guys, so I'm glad that you didn't get any".
You're spot on with that analogy. This is in the same way that if you were given an invitation to a party, you would hopefully not turn up with 50 of your own guests.
Well you'd hope that wouldn't happen. Because when it does, it's normally through Facebook and people gaming/cheating the tools it gives you to a similar point. Because people can.
Or if someone said "Hey guys I brought this cake in for everyone to have some." and then someone later said "Oh, I stole the cake because I have some friends who wanted some cake. In fact they wanted the cake more than you guys, so I'm glad that you didn't get any".