I like and understand your examples and explanations but I'll be darned if I understand what you mean here.

Do you mean in the entire opening post of the thread or just the part that you quoted? I can see that I am not getting through to you. I don't think I can. Probably my fault. Ah, well.

I really would be happy with maybe one more tiny comma somwhere.

Go ahead. Make your day. Add as many commas as you think are needed. Of course, if you can figure out where the commas should go, you probably don't need them in the first place.

Ceci n'est pas un seing.