Thanks for taking moment to share, @ojn
I really like misago but there's really no comparison when it comes to features.
And there will never be, to be honest. Misago is mostly me doing things in my free time, and Discourse is a team of dedicated of guys working 8 hours a day five days a week improving existing features or adding new ones.
There is also an unsolvable problem of different people coming with different expectations. For one person good email integration is a must-have, other says that category subscriptions are must-have, even other says that Facebook-like reactions are a must-have.
Personally, I'm feeling that I've kind of engineered myself into a corner with the current iteration of Misago, which does many things, but has long-standing deficiencies because there always was one more feature that was a must-have to somebody. In future major version I would like to actually cut features and focus on well polished forum package with plugin system - so if somebody is missing something, there will always be a space for plugin that somebody else will hopefully develop and maintain, taking the burden off me, and letting me focus on iterating and improving main "product".