I don’t have a problem with PKM as a referencing tool.
But step 2 “Organize → Place in buckets or categories” creates all sorts of problem:
When you delegate your info into existing categories, at least 2 problems arise:
1. Framing bias: the way presented → way you think → limits the possibilities.
2. Low cognitive load: the struggle is essential for encoding → more forgetting.
I don’t have a problem with PKM as a referencing tool. But step 2 “Organize → Place in buckets or categories” creates all sorts of problem: When you delegate your info into existing categories, at least 2 problems arise: 1. Framing bias: the way presented → way you think → limits the possibilities. 2. Low cognitive load: the struggle is essential for encoding → more forgetting. 
thinking in categories would interfere with my ability to freely pattern-match
Henrik Karlsson • Looking for Alice
As humans we like to put things into categories. It makes communicating and thinking easier. Scratch that. It makes communicating and thinking possible. Categories go hand in hand with words as providing us with crucial compression of reality.
Albert Wenger • Progress vs. Categories
I believe that what is needed for tagging to fulfill its potential while remaining feasible is to change its function: from labeling the “conceptual meaning” of bits of knowledge (which is labor-intensive, time-consuming, and fragile), to tracking its lifecycle .
Tiago Forte • A Complete Guide to Tagging for Personal Knowledge Management
What can information mapping teach us about tagging? Decades of research in this field have shown that the best use for labels is as an output mechanism, not an input mechanism
Tiago Forte • A Complete Guide to Tagging for Personal Knowledge Management
It's messy and disorganized in reality. Frameworks promise to bring order to it in pleasing ways. They blunt the chaos and give you buckets to categorize your observations. However, if you've ever tried to apply any frameworks, you know that they're anything but simple to implement. In the business world, frameworks are used as a crutch for making ... See more