cron. And it turns out, it has an ACM link in the external links, but it does NOT cite an ACM article, properly or otherwise
Yes, it does cite an ACM article from the late 70s, as the inspiration for improved versions of crond, which performed better, and were extended to all system users, not just root as early crond did.
And is the link related to cron? I'm going with no, because it doesn't sound related
That's just your own bias and/or unwillingness to read TFA.
"Robert Brown, reviewing this [ACM] article, [...] created an implementation [...] and this multi-user cron went into use at Purdue in late 1979."
It seems that rather than all those wiki pages citing ACM publications, somebody from ACM has spammed all those articles with unrelated links.
You checked on ONE out of hundreds, completely misunderstood everything about it, and are jumping to a conclusion that requires paranoid conspiracy fantasies.