Yes, PVP players ask for nerfs regarding weapons that they consider imbalanced. And yes, these changes directly affect the PvE experience in the game.
But for PvE players to react to every single weapon balance tweak with..
"PVP PLAYERS ASKING FOR NERFS ARE RUINING PVE"
"MY GUNS ARE BAD IN PVE NOW THANKS BUNGIE!! WHY DONT YOU JUST REMOVE CRUCIBLE?!"
I'd just like to remind you PvE advocates that if the nerfs to weapons are seriously having that big of an impact on your PvE experience, then you are a terrible guardian.
Seriously, there is [b]not one[/b] PvE challenge in this game that restricts you to using a certain tier of weapon.
Hard mode crota can be easily done with any 331 weapon, same with hard mode VOG, with 300 weapons.
TLDR: if you complain that pvp nerfs affect PvE too much, you suck, any weapon is viable in PvE.