I wouldn't do anything I am not 100% sure about, if it might have irreversible consequences. I have been stretching my ears since about two years but very slowly. I only stretch it further the second I know I want it.
I am right now at gauge 00 and I might stretch it one size further but not more than that. About the 'mainstream' part: Yes, more and more people stretch their ears, but also more and more people get tattoos. I believe that individuality expresses itself not in wearing one specific thing/piece of clothing/gadget but rather in the combination of things you wear/equip/carry etc. Therefore, the combination of having stretched ears alone doesn't make you 'mainstream' or a poser.
It can be a part of what you want to express, only a part of a combination of items you wear that together compose an individual style. I hope I didn't confuse you any further :).
I think if you're not completely sure you just leave them in a while and think about it more. Also it depends on the ear and how it reacts. I've heard people who have their ear stretched to an inch and shrinked back pretty well over a few weeks.
It's up to you. I agree though, stretched lobes are becoming more mainstream now because of these "scene" or "hipster" people. :s.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.