They have a form where they ask for an email before giving the download link. My guess is that + a bit of telemetry.

This will also happen if you use condaforge, which can be downloaded freely. Condaforge will also download from the main channel if the recipe requires it.

You can bypass that

By checking IP, I'm guessing

I work from home and even if I didn't, how are they going to link an IP to a company