I starch all of my fabrics pretty heavily.
It keeps my borders and quilt edges from rippling, while PP I can finger press. When sewing strips together I don't have any problems with them bowing either. I have not yet found a problem with using my stiff fabrics :wink: But I can list many more benefits to starching.
I have gone through my starched fabrics and have not seen any sign of bugs, but I think it can be more of a regional issue.