Light-hearted used in a sentence

Light-hearted in a sentence as an adjective

Am I the only one that interpreted as a light-hearted sarcastic remark?

Note: many of these are more humorous and brutal while being less crude and light-hearted than Idiocracy.

It was possibly a light-hearted remark, but luckily nitpicking folk like yours truly were here to save the thread from inaccuracy. :D

I really think HN has a habit of taking everything uber-seriously and has a hard time accepting things as light-hearted jokes or fun projects.

And it can only get worse if the community keeps taking itself too seriously to allow even light-hearted criticism.

Its become almost formulaic: cue hipster/light-hearted/playful music, show several emotionally engaging images with over-the-top DOF blur, narrate about how some mundane product that sucks us away from "real life" activities is tied to making the world a better, more engaging place.