I see this all the time. I can’t tell you how many interviews I have done with a senior person with 10 plus years does not have the competence and experience to do a junior level develops task on my teams.
It comes down to experience.
This is the same reason I have junior developers do code reviews, knowledge shares, and in short treat them like any other developer. As their experience grows, so does there responsibilities.
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.