5 years ago, aol still used aim internally for everything that people use slack for today. Group chats, bots, notifications for builds, etc, etc. Then gradually individual teams picked up slack and within maybe 18 months, we went from 100% aim to a gigantic corporate slack team. That was the end of AIM, I think. Aol and yahoo both use gmail internally so I suspect they’re going to shitcan their email services eventua…
I feel like it's related to the age of leadership and trends in the current cult of personality du jour, and its interaction with promotion, branding and marketing. Shit happens, and the inertia of social groups is tough to steer over time, as sensibilities and fashions change, people get old, and graduating classes of the current generation ascend to power.