Same goes for intersections that violate people's expectations of what should be a stop vs a yield.
Traffic is all about making interactions predictable so people know what to do and how to do it right. Reducing variance in behavior is far more important than what the speed is or how any given traffic control device is treated.
Traffic rules are all about dumbing down these complex fuzzy patterns into something we can codify, enforce and build consistent signage/markings for.
With the number of un-legislated edge cases ratcheting up fines is a recipe for resentment among the populace (possibly leading to different voting patterns not in favor of whoever driving the push for fines). Strict enforcement usually comes with the nasty side effect of being regressive and having demographically uneven outcomes. Lax enforcement results in variable behavior. For example some people stop religiously at a certain sign, some people don't, body language indicating someone is going to do one and then they do the other can lead to unpredictability in the eyes of the other road participants (e.g. pedestrian trying to cross there) and bad outcomes.
The modern thinking (borne out by studies) regarding traffic is that the best approach is to make it easy and natural for people to do the right thing. Want people to take a stop sign seriously instead of mostly yielding, turn your Y intersection into a T. Want to slow people down without reducing visibility? Paint narrower lanes.