I go through the #betta photos on instagram and tell people when they need to upgrade their tanks.
Today I met the ultimate stupid! It was a user that posts nothing but betta photos and claimed to be a betta lover. They gave a shout out to someone that had their betta in one of those tiny glass vases that you sometimes see bettas sold in. (The ones that are about the same size as the Petco cups) Their caption was "Look at this sweet set up! He looks happy". I commented and said "In reality he's thinking he wants 2 gallons and a heater". This ignorant person commented back saying that they had kept a betta in a bowl with no heater for 4 years. YUCK!
People really make me angry.