not from that charity, they're not sold to be eaten (and I believe they do check)
my 3 chickens are exbats, they've been here for a year. They were supposed to be past their best, yet they've kept laying all through winter, never had a day with no eggs and most days we get 3.
Plucking may be easier if you think they'd be worth eating but I think it's awful that they're allowed to get into that state in the first place. Fortunately Korma and Masala have grown all their feathers back now and Balti just has a very short tail (but that might just be a her thing not a plucked thing!)