mik5
“If it’s silly, then why do you follow it?”
Tradition!
I beleive mesora should be followed. Of course it is silly. DY mentioned a chashash for chmoetz. Nobody views it as a real chashash otherwise you wouldtn eat it the last day. As for keilim a year later the bleios of gebrokts/ “chashah cometz” dont magically disapear and yes I know there are some who use seperate kelim for last day or only make keneidlach if the next year is a leap year so the added month can make the belios over a year old but these arent mainstream minhagim.
BTW, Has anyone heard of a minhag applying baal yiraeh baal yimatzeh to this “Chashash Chametz” during the first 7 days?
And as mik5 said “For the record, the Vilna Gaon laughed about the minhag of not eating gebrots, ” Why wouldnt he? Its pretty funny!