Minneapolis comedian Turner Barrowman literally starts his set at The Facebook Show with the question "What's the deal with Facebook Messenger, everybody, right?" and that turns out not to be a rhetorical question. Facebook Messenger has some weird, probably not-very-smart features that make it ripe for trolling, which is exactly what Barrowman does.
Barrowman starts group chats with a bunch of random friends and his mom, introduces people who don't know each other and promptly leaves them alone, and creates impossible-to-leave chatrooms from hell. He even sends a bunch of "nudes" to every type of relation and acquaintance you can think of—with fascinating results. It all seems extremely awkward and perhaps a little annoying if you're his friend, relative or colleague, but as a comedy show, it works flawlessly.