I am wondering about the origins of the "X" in "UX" as an abbreviation for user experience.
Has UX become a standard abbreviation because the people in this field find the term amusing? My thinking is that a software user interface that uses shorthand abbreviations might not be considered to have a good user experience (at least, not at software companies where I have worked). Especially in this case, as the meaning of the X is unintuitive for anyone who has not encountered the term before (X could be taken to mean cross, a multiplication sign, the number ten, or even a syntactic wildcard).
The irony of using UX as an abbreviation for user experience must not be lost on user experience and usability experts. So has UX gained popularity because the specialists in this field have a sense of humour, and the term UX is ironic and amusing?