I think the only time where it’s ok to apply just to “see what happens”, is when you actually do have some experience or higher education to bring to the table. For example, I worked at a company that was hiring for a management position. Even though I had 3 years of dispatch under my belt, they were asking for 7 years experience and/or a higher degree that I did not have. So I did not have the confidence and talked myself out of it. I then left the company for a better paying job.
Come to find out they ended up hiring someone for this management position with not only less than 6 months dispatch experience, but in fact had about 3 months total. However they also had a higher degree from a well-known aviation university.
When I spoke to a manager later about it, I confided in them that I had been very interested in the role, but I did not apply because they were asking for 7 years experience. The hiring manager told me that they love to hire from within to “keep it in the family”, so they hired this individual on. Which did create some turbulence at first amongst the dispatchers, who did not appreciate having a very inexperienced person now as their manager. If I had known that… I definitely would have gone ahead and applied and then I could’ve stayed living somewhere I love and working for a company I did enjoy. But I was having trouble financially getting by in that area of the country. So I left for greener pastures.
So in cases like that yes, I could see applying because you never know. However, when you have zero dispatch experience to start with and now you’re applying to a legacy of all airlines, unless you’re an internal with a stellar reputation and record, I do feel it wastes the recruiter’s and other applicant’s time. There are hundreds of people applying for this position but some of them do not get seen because the recruiters run out of time. Therefore good quality candidates can get missed. Also, if I was a recruiter and it said we’re looking for a certain amount of experience but I see someone with zero experience applying, it would come across to me like they don’t read the directions or the fine print. Which would not be impressive to me. And some airlines do keep track how many times you applied and were rejected as well. Which can be good or bad, depending on the airline. Delta used to have a “3 strike rule”. Not sure if they still do, but if you had applied 3 times but did not get offered the job, anytime you applied after that third time you were automatically rejected.