Sheesh, that sure is a lot of straw men and passive aggressiveness. I agree with him that if you're having trouble with a monster the problem is probably not your armor or weapon unless you're getting one-shotted, it's your skill.
From my own experience I have a really hard time believing anyone is learning much with 4 players wailing on a monster chaotically, stunlocking it, and spreading the its damage and attention among 4 players. When it's just me vs. monster it's much easier to focus and learn its patterns.
When I go online, it's generally either to have that different multiplayer Monster Hunter experience hunting whatever for fun, or helping newer players rank up, or it's for farming a monster I think is kind of annoying to fight (recently Khezu). I don't care very much if the other players aren't pulling as much weight as me when I just want some materials as long as they don't triple cart because I can kill the monster myself. Any damage they do is helping me get the materials faster.
All I'm saying is if you're having trouble with a monster now and want to take the shortcut around straight up mastering its attack patterns and having a good strategy, you're only going to hit a bigger roadblock later when you come upon the more dangerous subspecies or quest variant. No need to assume anyone who thinks that is some elitist douchebag speedrunner.