inb4 dumb jokes about the glue actually being made out of ponies despite that idea specifically being rejected in the cartoon. inb4 comments about the glue being made from hoof clippings. That would be too inefficient. The glue is made from TREE SAP, that's the punchline, DEAL WITH IT.
Sorry to rage, but I know all too well what some of the rest of you bronies/furries/people on the internet are like. "Oh, I bet I can come up with some NEW smart-alecky way to contradict him!"