Yeah I realize that probably very few contact realtors/owners via Zillow. But most people I know that are interested in properties, still check out Zillow. Even if they are using a traditional realtor, Redfin or other sources.
I’d think you’d want to make sure there aren’t glaring mistakes on Zillow. Even if you aren’t getting leads/emails via Zillow the point I figured would still be to keep it up to date and accurate just for people that are checking it out even while using other sources.
During my search, I never once contacted a realtor via Zillow. However, I always at least checked out information on Zillow as well.