I only buy DLC that appear to hold value for me. So it is never a question of what is stopping me but rather a question of what would motivate me to make the purchase in the first place.
That being said, I bought the original Season Pass as part of a 50% discount bundle when the game first came out on Steam last year. DLC1 was awesome, DLC2 was solid. DLC3 was boring as sh*t (I have yet to finish it) and DLC4 I have no interest in playing as a DLC style (already played it when I played the Cr@ptastic Voyage in TPS and I did not like it then), plus the reviews have mostly been sub-abysmal so why bother?
My original feedback on the first four DLC’s from Sep 2020 is here (as part of an answer to the question why have you stopped playing):
Why have you stopped playing? (Opinion) - Borderlands 3 / Borderlands 3 General Discussion - The Official Gearbox Software Forums
And one of my (many) original feedbacks of the game as a whole from back in Dec 2020 is here:
Soooo, is there anything new? - Borderlands 3 / Borderlands 3 General Discussion - The Official Gearbox Software Forums
Along with a response as to what would make me want to play again from Jan 2021 here:
What would bring you back to BL3? - Borderlands 3 / Borderlands 3 General Discussion - The Official Gearbox Software Forums
This then moves us on to the components of Season Pass 2 - DLC5 & DLC6.
DLC5 is not a playstyle I enjoy, and the extra skill trees are a negative for me (I prefer more VH to more skill trees, plus I think there are too many skill trees to begin with). What might pique my interest is if they revamped Arms race into a full-blown game show format.
My thoughts on this topic from Nov 2020 are here:
DLC6 is centered around a character whom I loathe due to a set of piss-poor narrative decisions of the main game (which is the primary reason why I no longer play the game at all). The only thing that would entice me to ever have any interest in DLC6 is if either a) GBX rewrites the main storyline to fix the narrative debacle that is Ava/Lilith/Maya or b) DLC6 kills off Ava (preferably in a horrible, gruesome manner that is a direct result of her attitude and demeanor - like say, she picks an entitlement fight with a Tyrannosaur and in the middle of her snarky ranting the dino simply eats her…).
Some early thoughts on DLC6 (Director’s Cut) from Dec 2020 are here:
Directors Cut should: - Borderlands 3 / Borderlands 3 General Discussion - The Official Gearbox Software Forums
And lastly, for a broader perspective on BL3 as a whole, some old negative reviews when it first came out. I am especially fond of the last one, “Borderlands 3 Story is Absolute Garbage.” An enjoyable, if somewhat lengthy, rant regarding the problems of BL3’s narrative choice (some of which I agree with).
Dear Gearbox, We are not your Beta Testers - Borderlands 3 / Borderlands 3 General Discussion - The Official Gearbox Software Forums