Prevent the "Creation Complete" pop-up from appearing in the upper-right corner, and

While I'm working, that pop-up keeps popping up every now and then and getting in the way. It seems like they really love displaying pop-ups, but on a site meant for getting work done, it would be better to avoid pop-ups as much as possible. At the very least, I wish they'd include a toggle in the settings. It's a bit much to expect users to accommodate their personal preferences. They should at least create a setting exclusive to paid users.