The purpose of calling Vlad Putin "Vlad Putin" is to show disrespect towards Vlad Putin, which is better accomplished by making the diminutization less linguistically accurate.
It doesn't actually achieve that, it just makes you look like an ignorant Westerner. Similar to all the "-ski" stuff that Americans, for some reason, seem to believe is indicative of Russian.
Well, If you can't win in the battlefield, I think this is a good cope mechanism.
NATO should have stayed with their time-honored tradition of bombing the shit out of sheep-herders with AKs instead of starting a proxy war with Russia.
It sounds about the same as if I used something like "Joe" to refer to a William.