I haven't been to many tech conferences, but RustConf was hands down the best I've been to. Classy group of people. Smart, entertaining talks. I can't recommend it enough. There's no doubt in my mind that the quality and diversity of speakers, content, attendees and general atmosphere was due to community that has been curated. And I think that curation has been very intentional and has paid off. It was repeated numerous times that the Rust community is helpful and inviting... including IRC.

(Thanks Steve, I think you're a powerful force in shaping the awesome, welcoming tone in the Rust community)