A group offers suggestions on a shared interest and welcomes inexperienced questions. I propose to observe how he handles errors, sources and dissent.
In the example, moderators distinguish personal experience and verified information. The community can become a concrete resource when it does not promise unlimited competence.
For professional or health issues it is necessary to recognize boundaries. The number of subscribers is less informative than the possibility of receiving a respectful correction and understanding on what basis it is formulated.