The “V”

What’s with all the people doing a "V" when being clicked? I mean, what victory are they celebrating?…are they direct descendants of Changez Khan? Even if they are, c’mon, it’s been some time since he did something.
And if the rationale is that it’s a peace sign, then, what do they expect — their pictures will be seen by people in the war-trodden zones or what.
Lastly, to all the people who are (still) making a "V" on other people’s heads when a picture is being taken: please understand that it is not funny anymore. It’s a stone-age antic. Seriously. Please. Stop.