A "loser pays" system sounds great on the surface, but is fraught with unintended consequences:

- A complainant who loses on a technicality or procedural failure, and is now on the hook for hundreds of thousands in legal fees.

- A big company that bullies the complainant with legal shenanegans until the complainant is worn out, drops the case, and is now on the hook for hundreds of thousands in legal fees.

Just the fact that, after your own expensive legal fees, you'll be saddled with the big company's (much bigger) fees as well, would be enough to deter most people from suing, even if they're in the right. It would become a new tool for bullying the poor.