Most of you already know this, but the word of the day on the 7th was inflammable, which means flammable, and they explained how that came to be. After all, insane means not sane, invalid means not valid, why can’t inflammable mean not flammable?
It’s like someone saying they could care less. If you could care less, that means you have some level of care otherwise it couldn’t be reduced. It should really be “I couldn’t care less” but when all is said and done, the key is that people can understand what you’re saying.