In Pharo discovery coding is really encouraged. I personally like it for writing scrapers and/or web tests (I use Selenium in Pharo). I once had an improvized talk about it [1]. Nowadays, I'm back to Python and JavaScript due to their ecosystems, but for discoverability coding and Selenium-based testing/scraping, I still think the interactive experience in Pharo is unmatched.

[1] https://youtu.be/FeFrt-kdvms?si=g12m7aZtDWtMMgwJ&t=2270