I have a friend who is a manager at a charity shop that’s part of a national charity
Within this same charity, there are shops that will sell items that just aren’t bought by customers in other shops in another town. Demographics plays a big part not only on the products people will buy but also pricing.
They will ship certain types if items to other shops where the item will sell, some things go on line (eBay) and sadly some things are binned either because They can’t sell them by law, broken, dirty - quite a long list
As the shops rely on volunteers to be open, with many being elderly, they may not be able to open regular hours. Plus they’re short staffed in sorting the donations. They have been inundated with things because so many were having clear outs yet no place to donate AND the tips in our area were closed. Once they opened on a limited basis, it was garden waste only. So many people just dumped bin bags at the charity shop. Regardless of the items or condition they were in
The charity shops were overwhelmed and had no space to even store items until they had staff and space to look at the donations
That’s why some of you will have seen things going into the bin.
If you really want to help, hold on to your things. Donate according to season. Only then Donate what is in saleable condition. Volunteer to help in the shop with the sorting, pricing etc. It doesn’t have to be out front at the till.