So?
"We find strong evidence that ageist language related to communication skills, physical ability, and technology skills, even when it is not blatantly or specifically age-related, deters older workers from applying for jobs," the paper argues. "Job ads that feature ageist language attract younger applicants on average than job ads that do not feature ageist language."
Ageist language such as: must have good communication skills (able to write coherent sentences without emojis), must have physical ability to get off arse to fix a problem, and must have a wide range of technology skills rather than just a few months of the latest fads?
Actually, I don't mind ageist flags in job ads, or any other ists for that matter - it gives me an impression of the working environment without going through the rigmarole of applying and being interviewed. I really don't want to go on a recruitment merry-go-round only to then discover that the environment is just not for me.