One of the things I love the most about dev.to is that it is a community for all developers no matter what you are working on. It doesn't matter if you design websites, manage infrastructure, analyze scientific data or build micro chips. The jobs of all of us developers have many things in common and by not being all the same we can learn even more from each other. I only wish there would be more places like this out there!
Too many conferences, meetups and platforms are focusing on a specific technology.

There are only a few exceptions I know about:
I like the Hack && Tell meetup series. HN is a community for everyone but its anonymity and discussion style make it not a nice place for everyone. Strange Loop is a great conference bringing people together although its main focus is on languages and innovative technologies.

Do you know any other online communities, projects, conferences or local meetups that bring people from different fields together?