Firstly let’s define what Borderlands is. It’s primarily a single player PVE game with some Co-op elements. It’s not PVP and it’s not competitive.
The developers have, in my opinion, done a really good job of providing us with a massive and varied toolkit to enable us to play the game pretty much however we want to and kudos to them for that.
Every one of us has paid the admission fee, and every one of us has the right to enjoy the game how we want to, using the toolkit that Gearbox has given us.
If Player A enjoys playing a stealth sniper as Flak with Fade Away that’s a perfectly valid playstyle.
If Player B enjoys being a God Mode Siren clearing away the trash in the blink of an eye with TTB, that’s also a valid playstyle.
If Player C enjoys a real hardcore challenge and decides to limit themselves to only using white weapons, that’s also perfectly valid.
Everybody is enjoying playing in their own way and having a great time.
Why then, would player C start asking for player B’s playstyle to be nerfed on the grounds of some perceived unfairness? We’ve already established that one players playstyle has absolutely no effect on any other players choices.