first off, CS is a known exception to needing college.
second off, linkedin? are we seriously suggesting we take the word of people on the skills list they put on linkedin? whole point is some sort of "teeth" in the question of whether they know anything or have competence. somebody besides them saying in a definitive way that x person has y skill. in the order of what a sane person would trust, completing school/trade school, a certification, having taken a class in a competence, or being given a test at the interview.
last thing i am trusting is someone running their mouth.
it sounds cute to say widely interview but 1000 interviews lasting a half hour for an eight hour work day, 16 interviews a day, is 60-odd days. the employees doing that interview couldn't do their normal work. 100 interviews is more than a week. that's not even considering the prep work to do more than just read their resume while you speak to them. which IMO is as long or longer than the interview. you have to take some time to see gaps, contradictions, positives, concerns. i personally would rather have
this isn't an exercise in giving everyone their chance. your chance is at the resume and application packet stage. this is, let me review the application and pick a short list with the best candidates to bring in person. efficient use of time. you need to stand out on paper or have a great portfolio or otherwise immediately grab me. linkedin skills don't stand out. i have worked in the field decades does. i have held advanced positions does. i went to x school does. i made y gpa does. ii have been certified by someone other than myself does. i can program in x y z does, ideally confirmed by a third party and not just say-so. some of those items are workforce. some of those items are trade school. some of those items are higher education. i am disinterested in a process that waters down everyone to seem alike. i want to know who is smarter, more diligent, and more informed and effective in the field. whether you like it or not, higher education hints that someone (depending where they went), will have some snap, shows up every day, and will possess a level of knowledge in the field. particular schools will have a different vibe and history of success. some schools may be out of touch or too loose on who gets in. some may be impractical. but my experience there are usually a set of schools that produced informed candidates who can do their job fairly good out of the box. i can then train them. and in my experience a smart kid once internally well trained will run circles around their autodidact peers.
we do not have the time to make the sole point of our working existence for a week or weeks, interviewing. i want the interviewer back to work soon and producing work or making money again. and i don't want some HR generalist asking questions and deciding. i want experts deciding who their new coworker is. so a day or two, well prepared for each candidate showing up where i know their resume as well as they do. not improvising where i miss a detail or get suckered.