People will be people. If people were noble, they would take effort to overcome their human condition (e.g. write proper English, make schedules who gets which HNM.)
But the reality is, that only when it benefits all, the effort is taken. Image a stand at a horse race. It's efficient to sit down. But if one person cannot see the race, because he is sitting behind a person who is too tall, he will stand up. This in turn forces the person behind him to stand up and the whole system breaks down.
So, unless there is a body (i.e. a GM) that enforces a system, people will go for the option that is most beneficial to them and is within the scope of their current experiences and abilities. Some will quite, since they have almost no chance and it takes a lot of effort (this in contrast to the lottery, which has an insignificant chance of winning but takes almost no effort to participate in.) Some will do what ever they have been doing, since they will get some chance, and some will increase their efforts, by buying expensive bot programs.
In the end, square-enix will do very little, since all the HMNs are contained in a small areas (e.g. Dragon's Aery) and do not affect the game in general. So you can draw your conclusions from that. Civility, in my opinion, is the result of behavior that ultimately benefits the individual.
I would like to end with an apology for my poor command of the English language, my excuse being that it is not my mother tongue. I hope my mistakes haven't offended anybody.