Never had a chance to eat any snapper but as is a lot of things they say it tastes like chicken. I do have two stories from my youth.
A good friend, the daughter of one of my Dad' best friends and hunting partner caught one when she about 10 in a creek that was only about 4 feet wide while fishing. My Dad got a call to come out and see it so we did. They had in one of those big round wash tubs and it nearly filled the diameter. Apparently she didn't know what to do when she hooked it and screamed for help and her Dad heard her. The creek was only about 100 yards from her house. He went runing and lifted it out. Since he had 5 kids they had turtle soup for a few meals. Same girl and I use to hunt with our Dad's, they used us as dogs to chase the rabbits out of the under brush till we got old enough to carry a gun.
Different story and different friends, these all guys use to go swimming in several farm ponds that were within a few miles of home, normally nude. One day we were swimming and we saw a turtle head and neck peak out of the water the size of our arm. We decided not to swim in that pond anymore. Never did see the rest of the turtle, we were to busy getting out of the water as fast as we could.