I may be a bit off here, but when an ad indicates GFE, I presume kissing is a part of the experience. I know not all ladies kiss, and LFK or DFK is something about which each of us has opinions. Personally, I love the intimacy (the same reason some providers do not kiss) kissing brings to the experience. It is that lack of intimacy that brings some of us to the hobby. The rest of the experience is great, but the tenderness of a kiss sets things off for me and gets the blood racing to all places.
For me it (kissing) is often the determiner as to whether I will see a lady again. I may have had a great time otherwise, but if that piece is missing, I may not return. I am curious if I alone in this respect.