Why are people respelling names with a y?

Seriously, Jordan is much prettier than Jordyn, Ava is just fine with out that y in there, Victoria is so much cuter than Vyctorya. And so on. People are going overboard with changing real vowels to y's. The only name on my list that has a y where a y shouldn't be is Aryana, and that is because it is the orginal Greek spelling (Ariana isn't Greek) and it is pronounced Are-yawn-uh not Air-ee-aw-nuh. Why is this y thing happening?