While this is for categories mine is basically very similar so I saw no reason to make a new topic.
On our discourse forum there is an introduction megathread for new members. I have it muted because it always clutters the topics shown on the home page of our forum
There is also a second megathread where people can enroll in an opt-in beta program. Have it muted as well because it’s just the same replies. But since new members reply to it the topic always shows at the top