People Who Downplay Their Comment with "I'm Just Sayin"

This may not have attained the status of a true pet peeve, but it is starting to get on my nerves. A woman (I haven't seen a man do it yet) will express an opinion and then add, "just sayin..." as if she's not really claiming her own opinion. Hey, I'm just sayin... -K.P.

Hey, I'm just sayin'
Own your thought or opinion
Otherwise, zip it.