what are the most popular hack.chat rooms?

Hack.chat is a service that allows users to create and join chat rooms centered around various topics. The popularity of specific chat rooms can change frequently depending on current events, trends, or user interests. It’s best to visit the website directly to see which rooms are currently active and popular. Common topics might include programming, technology, gaming, and general discussions, but the specific rooms can vary widely. If you're looking for something specific, you can usually find communities focused on niche interests as well.