If there are legal burdens, those have been designed/created (by the brokers themselves) with the sole purpose of enabling them to justify the current MLS setup so that they can continue to suppress competition and overcharge consumers for their services. They set up the barriers in order to sell the access.
Pass along any legal risks to the actual people making the postings like so many websites do and case closed.
I’m doubtful this will ever change though, given the RE industry’s grip on congress. Why else would the government decide that renters (on average poorer) should provide a subsidy (mortgage interest deduction) to homeowners (on average much richer)? No other respectable developed country does that.
