In my experience, its more like "get your $100, then offer you another $500". I've been offered several jobs to continue working on open source software I've written at companies where that software is being used. In all of those cases I've been allowed to continue opensourcing the changes I've made. For small projects, nobody wants to maintain their own fork.
The BSD is a great way for those same companies to get your $100... and ask for another $500.
But if you can make your stuff work with no abstract legal entities getting involved, then sure, BSD or CC0 are the best.