On reddit, if the tone is not properly implied, it can lead to people downvoting. A lot of people will write "/s", meaning "everything before this sign was sarcastic", so that they won't be downvoted.

On here, many people are either unintelligent or autistic, so they reply to obviously sarcastic posts with either sincere ire or le tricky hook fish.

>>407570
Not all redditors do that. The ones who do do so either to avoid being misconstrued as serious, or to mock those who use /s in earnest.

The S in "/s" stands for "Sarcasm" and means "The preceding text was used in jest."

The process of using /s fist started happening on reddit in 2005. The common use has become relatively smaller since then as the size of reddit increases, while the percentage of new redditors who use the /s suffix does not increase as fast.

You can compare /s to the word "NOT!" popular in the 80s and 90s to denote sarcasm and revisited by the Sacha Baron Cohen film, "Borat."