I'm personally caught between my attachment to the "boring technology" philosophy and my desire to try Elixir, which seems like exactly the kind of obscure and exotic technology that it rejects.
- running on a VM (now boringly normal)
- using a pure-functional language with immutable terms (the pure-functional language fad has since then come and gone and this is now archaic and passé if anything)
But languages only get stereotyped once. At any rate, it's pretty boring and old.