Chanoch is also called Mem Tet. Shem is also called Malcheitzedek. Shlomo Hamelech is also called Yedidya.
Oh yeah and for the feminists out there Devorah is called Eshet Lapidot.
So Nicknames are probably seen as positive even in Judaism. They simply need to have a real Mashmaut Ivri to be embraced as such and not a form of moshav leitzim which kids and immature adults do to harass each other.