I'm adding a += operator to my programming language, because writing `x = x + 1` is tedious.
This opens the tricky design question of which operators should support this. Is += and -= sufficient, or do you expect things like >>= and **= to be available?
An overlooked PL question: what is easy to try in a given language? In lisp it's easy to try adding extra syntax. In Rust it's easy to try parallelism on iterators (rayon).
Are there other examples? Perhaps Perl and regexes or Haskell and STM?
Neat GitHub bot that uses ML to infer whether a task is a bug, a feature request or a question:
https://github.com/marketplace/issue-label-bot
The bot is no longer available as a service, but the source is available:
https://github.com/machine-learning-apps/Issue-Label-Bot