Yes it helped, but not convinced.

I can't know what is efficient, because it depends on individual human perspectives assessed in the moment. I don't think that these things are valuable but the market says that other people do.

Maybe it's corruption and gambling or maybe the lessons to be learned by people getting burned will be valuable for these people long term.

Also I can't know what will be a sustainable business model because the future is uncertain. What seems random on a short time frame can be very consistent over long time frames.

I want to be convinced, but "reliable block fee's" I think is not clearly good, it biases miners who are not agile and dynamic. Why would we want that?