Unfortunately i am greek although i do not want to or feel like one... but yes your name is of that origin. your nickname is stefanvv... i do not see a capital N on it... so...

The only way someone would change a team would be for Money or because someone has a better package to offer...

nobody changed teams/jobs/wives/countries just to prove himself... so your way of looking into things about him is wrong... so you are wrong... and you should be sad about it.