Ask HN: How many of you have “hidden” posts that you don't remember hiding?

For those of you who don't know what I'm talking about, click your username and then click "hidden".

I ask this because I often, especially on mobile, accidentally "hide" posts, and I don't really understand the value of this feature even existing. Is this supposed to address Situations where people feel insulted by a post existing and repulsed by the idea that it is not flagged out of existence? Or, is NSFW/etc. the primary reason for this?