The jumping move is shit without buffs. The stick hits like a wet noodle without buffs.lol you don't have to buff, you can just use the stick to hit monsters. Or do the jumping move.
Without buffs you feel like a high school pole vaulter. With buffs you feel like SATAN'S DEATH WINDMILL.
I'm sure there are a few players who never use the Kinsect, and those people will be relying on MP just to win fights. But I bet it doesn't happen often, because the buffs make such a gigantic difference and every second spent without them is excruciating.Gunlance can still do great damage even if you don't use Shelling, but an un-buffed Insect Glaive do a very mediocre damage, even more if you only spam jump attack.
Though feel free to do it if you are solo-ing, but in MP I imagine you will only annoy other players, I know I'll be annoyed if an IG player joined the hunt and do nothing but spam vault attack the entire fight >.<