Come on skater... no need to be like that that IS actually a problem, i recall several topics with some veterans saying theyve managed to catch enemy snipers because of scope glare.
And to answer your question, adibs, yes, if you read several of the stickies and guides on good sniping, most if not all will provide feedback on that matter, it is important and it can get you spotted easily specially by seasoned players, hell, if you leave parts of your skin without camo that will be a giveaway for experienced players, lurk more around the old topics and youll see even in the picture threads that some critisizm is because of naked wrists or unpainted face, good luck.