NG Button on Reddit

What it signals here

upvote context

Posted in comments to downvote an idea symbolically — a more colorful alternative to just disagreeing.

community use

Used in communities focused on quality control, Japanese culture, manufacturing, or broadcasting.

subreddit meaning

In r/mildlyinfuriating or r/Wellthatsucks, used to stamp situations as officially bad.

karma context

Low karma magnet if used seriously; moderate upvotes if used ironically in the right community.

See it elsewhere