In order to help you understand what I wrote: In my first example, the relevant characteristic is "use for commerce" and in my second example, the relevant characteristic is "suitable for coin collecting".
You remind me a lot of an angle that is just under 180 degrees.
PS. Mr. Moderator, I suggest that you ban privatebydesign from this site. His (or her) troll-like behavior is too much for me and, based on comments I have seen on this forum, for others. BTW, regardless what you decide about privatebydesign, this is my last post on this forum.
PBD has made significant, helpful contributions to these boards for years.
What you wrote about coins and commerce was clear the first time, but irrelevant. Equivalence has a specific definition in the context of photography, and your posts make it obvious that you don’t grasp that. Similarly, the term ‘stop’ has a specific connotation. If I say, “Stop down to get more depth of field,” you wouldn’t think I meant to pause in the pasture and dig a deeper hole, because you know what those terms mean in context.
As for banning, that does happen – usually to people with a pattern of insulting other members, however geometrically veiled those insults may be. If it’s truly your last post here, don’t let the door hit you in the derrière as you depart. I, for one, will not miss you.