This is a good question, and I think a not-small-part of why is this being asked is because of bloated job descriptions. Something newer developers should understand is that many job descriptions are pie-in-the-sky wish lists that don't accurately reflect the job descriptions. The same murkiness can surround what defines a junior dev, and job descriptions that ask for 2-3 years experience for a junior role don't help, since it's (very) arguable that most people will no longer be junior after two years on the job.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.