I honestly couldn't speak to differences between the two services. I used Slack for one semi-professional community in particular a few years ago, but have sinc

I honestly couldn't speak to differences between the two services. I used Slack for one semi-professional community in particular a few years ago, but have since used exclusively Discord, due to its ubiquity. I do recall that I immediately preferred Discord's UX, but I can't remember anything that impressed me in particular. As for anecdata, I have yet to stumble upon any active community still using Slack in the last couple years, but I am aware of several Slack groups that cater to industry-specific demographics, though since they require membership in their particular industries I cannot speak to how active they are or whether they've since changed platforms.