Some stays in Turkey do very well. However I've seen plenty of cats in need of medical attention (swollen limbs, covered in their own feces, etc) and some people actually harassing them. Same in Greece according to my cousin who was doing some charity work on an island to improve cats conditions.
Stray population needs to be small enough for them to do well with the help they can get from people. The best thing that Turks do for cats, is too neuter them.
That's true, stray population needs to be kept in control. Just hope things get better in the future for the strays, whether in Turkey, Greece or anywhere else.
It really depends on the area, if someone in the neighbourhood is actively taking care of the strays then they'll be fine, but we have too many strays in Greece and not enough people who care for them unfortunately. Road killing and poison is a pretty big problem in the cities as well..