Do they develop a "very personalized workflow", or do they simply use abstractions and techniques that go beyond hashmaps? I've observed on a number of occasio

Do they develop a "very personalized workflow", or do they simply use abstractions and techniques that go beyond hashmaps? I've observed on a number of occasions that very good programmers get accused of writing "incomprehensible" code simply because they use data structures that you learn in the second half of CS 101, e.g. token buckets or bloom filters.