I gel because I like the appearance of gelled soap better. It is also less stressful for me to intentionally gel than to try to prevent it. I absolutely do not like the appearance of my soap with partial gel.(If it is someone else's soap, it does not bother me.) Gel does nothing but change the appearance in the long run.
I have been adding sugar/honey/etc to increase bubbles as this has been widely accepted as fact among most of the community for as long as I have been soaping. However, I trust DeeAnna implicitly. She always has good, solid science behind her opinions. I do need to test for myself, though, for a final convincing. It would certainly be easier to skip the sugar addition when making soap, and I am all about cutting out unnecessary steps.