Sounds like I could of worte this about my quilting. I joined a guild and all they talk about is quarter seams or fat quarter seams. I too, do not wash my fabrics, I like working with the stiffer fabrics. I do not like to iron every seam. I want to sew not iron. I have gotten so I do not want to work on group projects because my pieces do not match their's in size or "quality" Mine go good together for my projects but I won't be comparing my projects with their's. My projects do bring joy to the people that have received them and that is what counts.
Keep doing what you are doing. There are others who share your pain and busy schedule. We can share the projects, we don't need to see the seams. Anna