I am curious. If what you described is a standard technique people can use, what prevents the recruiters/talent acquisition to, by default, discard resumes/CVs without exact dates?
That may answer the question for you, but ageism is a legal concern and disqualifying candidates because they didn't tell you when they graduated isn't dissimilar to asking someone how old they are in a job interview and refusing to hire them if they don't.
The goal is to appear no older than a 30-39 year old professional on the job application as much as possible.
22+15 = 37 (24+15 = 39, if a masters)
Do you as a potential employer care that I was an Informix DBA in 2000?
HR wants experience who isn’t at peak earnings. If you tried to recruit me from a Jon I liked at 30, a 40% raise would be affordable. Now, no mas.