For if correct grammar was truly a virtue as some people here apparently believe megazero would be able to acquire it only through the practice of habituation. As a virtue, I propose grammar is a mean state which lies in between the excess of grammar nazis and the deficiency of aldo-ness.

So in banning him, you are preventing him from achieving the goal of internalizing this virtue. It is as well worse to do wrong to someone than to have wrong done to you, which in effect makes aldo the one with bad ethics, not megazero. Oh aldo, when will you learn to give up your slavish pleasures and live the eudaimonistic life?