I use categories for military vets and sometimes other cateegories, but most of the time I forget. Also, I don't want to junk up a profile by incluing umpteen categories. A simple explanation might encourage me to use categories and help me understand which ones to use.
1. How does a Category help me or others with research? (The old "What's in it for me? question.)
2. How many is too many? Example: A person was born in Dracut, Massachusetts, was married in Chelmsford, moved to Vermont, fought in the War of 1812, then moved to Michigan, is buried in a cemetery in Michigan, and had a name that includes him in a One Name Study.
(I didn't know how to tag this question to get the broadest audience possible.)