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This needs further research. Keysmashing was a thing much earlier than 2018, at least in Spanish-speaking circles. Sorry for not being able to provide you an exact date, but I've seen widespread use of keysmashing in Spanish-speaking circles at least ten years earlier. 77.241.124.59 (talk) 09:48, 10 June 2020 (UTC)[reply]

You are right. AFAIK I have seen keysmashing on Turkish web to express laughter since the early days of Internet gaining popularity here. We call it "random atmak" in Turkish. I expect it to be similar in other cultures as well. This article is extremely Anglocentric. --89.245.131.94 (talk) 22:41, 11 February 2021 (UTC)[reply]

I also have no citations to back this up, but based on my own experience keysmashing dates back to at least the mid-1990s and was used in chat rooms on dial-up BBSes in the US. I don't remember the actual term "keysmashing" being used, but smashing keys on the middle row of the keyboard was used then to indicate laughter or sometimes surprise/shock. CKarnstein (talk) 21:52, 30 September 2021 (UTC)[reply]

I think we should also add keysmashes that have wikipedia pages in other languages. For example "くぁwせdrftgyふじこlp" from the Japanese Wikipedia would also help add a more worldwide look at the subject. Translinuxcat (talk) 13:54, 2 January 2023 (UTC)[reply]