It's a Q&A platform based on steem blockchain to solely help out with the queries of fellow steemians. The questions asked and answers given here are rewarded based on the value they have.
Musing has their own discord community server. https://discord.gg/ab5y7au follow the link and you are good to go. You will find the moderators and many other members who are active on musing
if you have any kind of question ask here in musing or ask them in discord if its only regarding musing. you can also give them suggestions there about how they can improve the platform.
On a side note if you are new here always use the dedicated search engine musing has by searching if your question has been asked previously. It will save you the hassle of asking and waiting for an answer. best regards.