I don’t have a favourite Discourse instance as such (although ATM I am particularly loving journalling in my own personal Discourse instance, which I am planning on writing about for a Community piece soon)
But over the past decade of using Discourse I’ve enjoyed watching to see how many new products, services, communities and teams are using Discourse - from Neural DSP to NHS Digital Developers to Caddy to the International Guild of Knot Tyers …
I love how the fact Discourse tends to be set up on a subdomain means that you can often predict that forum.somecompany.com will likely be a Discourse - and then when you see the ‘dancing dots’ you know straight away. Even Discourses that have been very heavily skinned and tweaked are still recognisably Discourses.