This happens a lot: I apply for a job and they ask for my complete address. Why? I would understand if they just want to know what city/town I'm in: That has bearing on how easily I can get to the office.
But why do they need to know my street address?
The only thing I can think: Indeed/LinkedIn/take-your-pick is building a profile of me based on this info, using my street as a proxy for my income, credit score, or, ultimately, for my social class.
From now on, when they ask me, I'm just going to put a rich person's address. For this one I used a Brooklyn townhouse where Maggie Gyllenhaal and one of the Saarsgaards lives.
I think this is the most likely reason