I get my hair cut dry all the time. I think it's the best time to cut hair because all the curls are not stretched out and they already fall in the place they normally do. Although, some people have parts of their hair that's curlier than others, so while a dry cut will make curls look good, the cut might look uneven when one straightens. I don't straighten though, so it's not an issue for me.
3B that is no longer CG, but still endeavors to have healthy hair by not using sulfates.