Nail polish and nail polish remover use an acetone base. Acetone is an organic solvent and, like any organic solvent, should be used in a well-ventilated space. I have absolutely no idea how you could think that the smell of acetone isn't irritating and annoying to others, regardless of their "special sensitivities" or lack thereof -- the smell of nail polish is not, in any way, analogous to the smell of, for example, a nice steak, which most people are genetically programmed to find pleasant and appealing. Regardless, people who bring strong smelling food on a plane are being equally considerate, as well as those who take of their shoes and have stinky feet, douse themselves with perfume, or change diapers in the cabin. Some people can't help some emissions -- it's not pleasant, but it's not voluntary. I'll be much more forgiving of that than someone who decides to douse themselves with organic solvents or aromatic hydrocarbons but it doesn't even occur to them that it others on the plane might not want to smell the stink they are making.

It's very simple: don't impose on others by intruding into their space, whether physically or with strong odors. It is absolutely beyond me how anyone can think it's perfectly fine to do whatever they want without the slightest thought for how other passengers might react.

You think I have attitude? You're damn right that I do. I have reached my limit with selfish, self-absorbed, thoughtless and rude people on aircraft.