Because hardly any of the charity shops are open (understandably so) and the ones that are might not even be taking any more donations. Our house is cluttered from years of hoarding, I'd say a 4 to 5 on the "clutter image ratings", and I'm trying to do something about it though progress is slow at the best of times. There's a pretty big bag, mostly clothes, waiting to go.
YANBU - Bin it.
YABU - Keep it until it can be donated.