It doesn't obligate you, it just goes to show you were talking out of your ass like a backseat driver. Or a keyboard warrior that says "Just overthrow the regime, it's so easy. But nah, I'm not gonna do it cause I don't feel like it. I'm not obligated to do anything just because I said so." Or someone who says "Cooking is so easy, anyone can do it. I don't cook though, cause I don't feel like it." You clearly don't have anything to contribute to the discussion, so why chime in at all? Just to be contrarian?