Waiting around in crouched mode aimed down a snipe lane or high traffic area for someone to walk by isn't sniping.
Running around with a snipe out challenging primaries with quickscopes and no scopes. Pushing and rushing with a snipe. Taking on shotgun kids and quick scoping them in the face from melee distance. Seeing an enemy and then zooming and taking a shot . These are good sniping skills.
Hard scoping is thrash.
Sniping from invisible is trash.
1000 yard =trash.
High impact = trash.
Raid snipes in pvp = trash.