Rocket.Chat is a popular open-source team communication and collaboration platform. Using hashtags in Rocket.Chat can help organize and categorize discussions and messages. However, as of my last knowledge update in September 2021, Rocket.Chat didn't have native support for hashtags like social media platforms do. Still, users can use certain conventions to create pseudo-hashtags. Here are some pseudo-hashtags you can use in Rocket.Chat:#General: Create a general channel where you discuss overall topics, and use this as a pseudo-hashtag to categorize general discussions.#Announcements: Use this pseudo-hashtag to announce important news and updates.#Feedback: Use this pseudo-hashtag for discussions related to user feedback and suggestions.#Events: Use this for discussions about upcoming or past events.