Personally - I tend to think along the lines that we should be applying roughly the same rule of thumb here as we do for people. People are allowed to view pri

Personally - I tend to think along the lines that we should be applying roughly the same rule of thumb here as we do for people. People are allowed to view private art, draw inspiration and ideas from it, and execute on those to create new things. Why should we limit AI any differently? If the end result is too close to the original - apply the same guidelines you would for any other artist who copied your work. Otherwise... you're not allowed copyright over a particular style (for damn good reason). While I would like to see artists retain some form of revenue, I don't think this is really the most pressing issue on that front.