Think the sad truth nwadays is ppl use it to look more pro than to shield off strong light intensity that invites flare/protect their front element..
Got a friend once ask me :
Fren : Hw to use CPL arh?
NNB : Remove ur hood/UV, and screw in front of ur filter thread and rotate, u noe can saturate sky and remove reflection tis n tt...
Fren : Arh, u mean mus remove Hood then can use meh, aiyoh, lidat, not pro liao leh.. Think nt need CPL la.. mus take out hood, sian..
NNB : ..... ..... ..... .... .....
haha. LOL la. if my fren tell me tt i think i will faint on the spot. either tt or laugh at him