Maybbe @MakerWorld can try what Netflix does, which is to allow multiple profiles under one account.
Have a rule that says profiles cannot boost, rate, comment on the models/print profiles that are from the account under which they are in. Downloading of the models in their account also don’t count.
If it’s only about finding a better way to show different types of models under one account, there can be another way to do it. Here’s a thread that I commented on not log ago.