Originally Posted by
Kabooa
Open Skill systems are notoriously hard to balance, and without hitting the unicorn mark for diversity, strength, and limitation, cause more problems than they're worth most of the time.
While they are my favorite sort of system as they allow for incredible build diversity, "Build Diversity" is often just a label for "wrong choice", and it's no surprise we see even the more streamlined versions of these systems fade away with time. (Talent Trees are the most contemporary comparison.)