MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Yes.... from (a lot) of past experience this can cause issues when files no longer print well for people due to the remix. I test print all of my designs to ensure they will print well for most people and try and assist those who do have problems.
If it's my work, for all that it's unpaid I'm happy to do this, but when I used to allow derivatives people came after me for support because I was the originator of the design... plus it can negatively affect my status here.
Sorry but this is in the interests of self preservation