I've only just dipped my toes into Elixir and Phoenix but so far really loving it. I feel like I've noticed it popping up on here way more often lately or is that just the ol' frequency bias kicking in?
Embedded with Nerves, the various AI/ML libraries and tooling, LiveBook getting better every day, LiveView innovating and improving DevEx, etc..
Then there's fly.io pushing out content given their target market is developers and they have a big focus on deploying Elixir applications.
aka Baader-Meinhof phenomenon
(since I learned about it, it keeps popping up everywhere)