[majewsky]

I agree with your assessment, having experienced a gradual shift from junior to senior myself.

As for why the downvotes, hypothesis 1: People might misconstrue your position as "senior ICs are supposed to design the system entirely on their own". I understand you as "management provides the direction and some design constraints, seniors fill in the details, juniors just implement specifications from the seniors", which matches my experience.

Hypothesis 2: Maybe it's a culture thing? I'm guessing from your user name that you're from Europe, and I'm from Germany. Maybe the downvoters are literally coming from a different place? (Don't know how it would be different over there though.)