The "Welcome Thread" is a community initiative by Dev.to, where users can introduce themselves and connect with others. To participate, simply leave a comment sharing something about yourself, and respond to someone else's comment with a question or hello. The goal is to foster connections and earn the Warm Welcome Badge. Users can also utilize templates for quick answers to frequently asked questions (FAQs) and reuse snippets.

Source: https://dev.to/devteam/welcome-thread-v299-2770