Use of the word is a meme. But any use of information to try and influence what other people think is basically what a psyop is, and everybody does that all the time. People only tend to call things a psyop if they think the motives are especially sinister, but that's just a pointless distraction imo, as you can never know what somebody's motives truly are. Every statement the government makes is a psyop, or an act of information warfare. Same for journalists, or social commentators, or HN commentators, or anybody else...
Small and insignificant as it may have been, there are real psyop’s out there, and dismissing them all as a meme is lazy thinking.