I've made some contributions to Django over the years. Some code, a decent amount of documentation, and I like to think I've been useful in bureaucratic roles (I was the release manager for a while, I sit on the security team and technical board, I serve on the board of its sponsoring nonprofit, etc.). Along the way, I've picked up pretty extensive knowledge of Django, inside and out. And I've certainly made money as a result of that!
But I can't imagine sitting down one day thinking "you know, nobody else should be allowed to do what I did". It's a big world with a lot of potential clients and employers out there. There's room for anyone who wants to get good with Django to put that knowledge to use to make a living, and I don't see any justification for trying to stop them.
If this were the standard sort of "we trademarked the name, and you can't use it as the name of your product" that a lot of larger open-source projects do (including Django, FWIW), I'd be more sympathetic. But trying to forbid people offering consulting or hosted "I set it it up for you" type services? That's a massive grab of other people's knowledge and labor, and I can't support it even a little tiny bit.