“I’m just saying”
I’m interested in the origins of “I’m just saying” used postpositively. (Also its variant: “I’m not saying, I’m just saying.”) An example: “Have you ever noticed how many people end statements with qualifiers? I’m just saying.” It seems to be an update of “With all due respect,” or perhaps something I’m not thinking of. Is it an East Coast expression? I’m from California and have never heard it in speech, but have noticed it frequently in blog titles and posts.