We have a good number of questions tagged development. I don't really get what it's for. The tag wiki explains
Use this tag for questions regarding the development of open projects.
So what are we talking about? About software development? business development? project development? Any kind of development?
I don't know, which means it's already unclear.
If it's any kind of development, then I think it's too broad. If it's software development, I don't think it offers much over what software offers, and is still pretty broad; are we talking about software development in general using open source tools and/or materials, or are we talking about developing open source software?