It is insane that there is no lifetime cap on merit you can send to someone. There are users here that have literally traded hundreds of merit with each other. The fact these people are typically the ones trying to destroy the reputations of others with flimsy accusations of bad behavior and you see exactly what sort of system has been created here. Something should definitely be done to address it, but good luck getting people who surround themselves with ‘Yes men’ to take any action that wouldn’t benefit themselves.
I don't really know what it's all about but it sounds like a case that has affected you personally. I don't know if that is what has made you think of the lifetime cap but I don't see the point. The system is set up so that you give merit to deserving posts according to your rationale. I don't see a problem with LoyceV and fillippone sending a lot of merits to each other (if they have, I haven't checked), for example. Putting a cap would distort the system.