You probably think you were doing a good deed and helped this cat but what
do you think kindred kitties is supposed to do with him if they don't have
room? It sounds like this organization operates out of foster homes not a
shelter. People can only foster so many cats and then they are full - end of
story. They may not have cage space or time or financial resources to care
for this guy but you essentially just dumped him on them. Fostering cats
isn't just a matter of having cage space and providing food and water. The
foster parents have to spend time with their fosters every day to keep them
socialized or in many cases re-socialize their cats. It's a lot of work.

I'm sure you were operating under the impulse to do good but you dropped the
ball on this one. If this groups told you ahead of time they were full did
you check to see if another groups could help? Did you ask how long their
waiting list was? Did you even consider fostering this cat until space
opened up?

My point is that these rescue groups are scraping to find room and resources
for the cats they help. Don't figure they have unlimited resources so
dumping one more cat on them won't be a problem. It is.