(Copied from original User Voice forum)
"I receive a lot of files from freelancers, outsource that have Turtle enabled (for no apparent reason). This quickly spreads through the project like a virus and is almost impossible to remove. It causes all sorts of problems - unrecognized, locked nodes that can't be removed, file type can't be changed etc. Can Turtle be included as a separate install so you have to actively turn it on and want to use it, rather than being on by default and infecting everyone's files."