WhatsApp introduces ads in its app

WhatsApp has been relatively feature stagnant for a long while now, and it's certainly being almost ubiquitous for a long time too, but we're seeing an explosion in features and product tweaks recently? I wonder what the trigger was to suddenly leverage the enormous corpus of users to sweat more cash out of it?

> relatively feature stagnant

Is that a bad thing? It's a useful dedicated tool. Paperclips have been feature stagnant since the 19th century, and they're fine