@BreakDecks FOSS allows you to charge money per seat. But FOSS compels you to pass the freedoms on to others, so essentially, they will pay, then they will get the software with the license which gives them the freedoms, then they can decide to share it further without any payment. It's no longer up to you. That's what freedom means.
The level of misunderstanding of OSS licenses is astounding, and dangerous.