I've worked with Ruby for ~15 years now, and I've used Rails maybe 2 of those and it was the worst experience.
I think Rails really was a very mixed blessing for Ruby - on one hand it brought a lot of people. On the other hand it associated the language with a whole lot of practices that has done long term damage.
I use it all the time and still haven't actually done anything with Rails.
The last thing I wrote in Ruby was a script to help manage my email inbox using imap.