Among the excuses megapackers like to bring up, like that it is skillful to gather such a big group of people, dismissing it as just a playstyle is the most common one.
What you are doing is intentionally going out of your way to break the intended rules that were made for a reason. This is as pathetic as using scripts in other games to compensate for your lack of skill.
other excuses used to justify megapacking to stay in the game:
-You can just run away
-never be in x, y and z area
-Being in a megapack is actually a downside since you cannot buff everyone and debuff your teammates
-You can just megapack yourself to counter the megapack.
-I have no social life nor any accomplishments to my name. Cheating in this game by megapacking is the only way to feel any sort of happiness and camaraderie in my miserable existence.