My pie in the sky pitch is the US Government (and others) should solve this, the legality and the compensation problems in a single swoop. Make submission of your work to a federal model data set a requirement for obtaining copyright protection. License the data set (and heck maybe even charge for making custom models) for nominal fees to anyone who want it, with indemnification against copyright lawsuits for works deriving from the licensed model. Pay copyright owners a limited time royalty from these licensing fees. Everyone wins and we can stop needing a billion bots scraping a billion sites billion times a day.
While I would like to see it abolished entirely (including patents) I do have to compliment how you've described a formula that is actually possible to implement.
To deny people access to things is one thing, wanting to do it by impossible means is quite something else. Who even has time to scavage the universe looking for possible infringement on their works and also the money to deal with it?
