i agree but the coim is not showing in my grade as a proof it was struck as a proof as you say but to me it lost its proof status for my collection if i were looking for one
Isn't it just lovely, then, that nobody died and made you king of the universe? You are CERTAINLY entitled to collect your way and what YOU want to collect. If that excludes impaired proofs, s'be'it. But your wants and desires just don't change facts.