It's been 4 years since I left Rails core, and my most impactful work has happened since I left.
Here's a writeup of it all:
https://kaspth.com/posts/i-quit-rails-core-4-years-ago-heres-what-ive-been-up-to

TIL: you can use different formaction attributes to submit to different endpoints within the same form.
Like "Save as Draft" vs "Save and Publish"
Helvetic Ruby was a blast! Awesome conference, awesome people!
Actually, this is a case study in poor executive communication.
https://discuss.rubyonrails.org/t/a-short-case-study-on-how-to-discourage-documentation-prs/85853
The person in charge of Rails Foundation really did tell the OP to go fuck themselves. No empathy for their experience, or why they perceived it the way they did. No empathy for moving the goal posts, even if there may be good reason/precedent to do so. And, no help in solving the actual issues. End result is that Rails essentially doesn't document this odd behavior and one less person engaged in helping
The Rails foundation has been talking about improving docs for a while now [@AmandaPerino ], and that’s partly what encouraged me to make the effort to submit a couple of changes. It started well I hit an issue with some unexpected behaviour. As far as I could see, this wasn’t documented - though I could see where it came from in the code. A helpful core team member pointed out that this was a duplicated issue, and the dupe explains why this is expected behaviour. The same person commented...