Plenty of stones have been thrown at AR's, suppressors, and .223 for deer on this forum. The post is a tongue-in-cheek way of calling out the myths, while simultaneously sharing a successful hunt.
Moreover, there may be those that are ok with the notion of .223 for deer, but only during certain circumstances. Certainly not during the rut or when targeting big bucks. In fact, when sharing today's success with an older friend, that was his exact response, "Why would you carry a .223 during the rut?" As though somehow the rounds lethality degrades because the deer are mating. I just wanted to share the data point.
.223 is illegal to use for deer hunting in many states for a reason. Any caliber down to .22LR is capable of killing a deer, but that does not mean it is best suited. You can also kill a deer with a filed point and a bow. Does not make it a good idea though. Not "hating" on you for using a .223 and glad it worked out for you, but I don't think it is a good idea to promote using .223 on deer. You will kill some with it but also loose a lot more deer in the process than more capable cartridges. If the only gun I had access to was a .223 I would use it. I sure hope that is never the case though.