I mean if you don't have the time to work on OSS then don't, and there is nothing wrong with that. Also, working on an OSS project and refusing feature requests is OK - let them fork it.

Many OSS projects have a community around them that help each other, talk about things, and are cool places to learn about specific things. Of course many used to, and they do not anymore. Things do change over time and that's OK as well.