Is the Label "Creationist" Pejorative?

This is in reference to my last post. Merriam-Webster defines "pejorative" has "having negative connotations; especially : tending to disparage or belittle." My short answer to the question in the title of this post is that it depends on the context and the speaker. I certainly do not consider it an inherently pejorative term. In the way PZ Myers is using it of Ken Miller, it is pejorative. The way many scientists use it to describe intelligent design proponents, it is pejorative. These uses are misleading, disparaging and do not foster civil and rational debate. Oh, that our scientists would be rational. Is that too much to ask?