[Framers] Best way to import/add select paragraph formats?

[Doug]

I start with a blank document.  I create the format, then save it in a
folder reserve for formats.  I name the file based on the format name, and
I append a (p) or (c) to the filename to remind me whether it's a paragraph
format or a character format.

Later, when I need to import the format into a document, I just open the
template file and use the File > Import > Formats function.

Is there a reason others don't do it this way?