The Salt community comprises users and developers from all over the globe. The vast majority of these people are professionals who use Salt in a business environment, though some hobbyists have found their place among the ranks too.
When most people make their way to the community, they are looking for help and information about a particular situation that they are working with. This may be as minor as looking for examples or documentation, or it could be more serious, such as reporting what appears to be a bug in the software.
Once people have spent some time in the community, they often stick around to help out other users. Remember that while some of them may be experts with Salt and the various pieces of technology that it manages, they are still just users like you, who are contributing their own time to help out people like you.