LinkedIn - Am I doing something wrong?

I have created a LinkedIn accont and started a group around the benefits of dance educaiton

Inclusive Dance and Performing Arts Education

I have some followers, (I know that I need to send some requests to a few more people to improve this) and I have posted some topics for discussion, but I have had no replies. Is this because my topics are not of interest to anyone else? Are people not finding LinkedIn the best place to make connections to discuss their enquiries? Or am I doing something wrong and no-one knows I've posted??

Also I have found that I have joined others SIGs on LinkedIn and have not been able to find anyone's discussions, this is why I am particularly worried that I am getting something wrong.

Any advice gratefully received!