Except that the OP has already stated elsewhere in the thread they intend to release it after cleaning it up a bit, so the person I was replying to ('sneak') has much less of a point.

Yes of course there's plenty of companies using GPL licensed software to run their own SaaS. I can think of off the top of my head just about every domain registrar in existence that has their own custom tech stack which almost certainly has tons of bits and pieces of GPL stuff in it, and they're certainly not releasing all their server-side/back-end code.

I would also be very doubtful that people who use bits and pieces of AGPL v3 software in their internal operations are ever going to release their custom modifications of it. In many cases the GPL licensed stuff is implemented in such a way that the user manipulating a publicly-accessible web user interface, a user interface accessible after signing in, or an API will never see or know the exact pieces running under the hood.