Question

Hello and blessings,
 
Do you think there is room for a sensible proportion—one that is not grounded in sources—regarding observance of the commandments?
 
I’ll try to explain with an example: I saw that Rabbi Chaim Kanievsky was asked, regarding the laws of genizah and the honor due to books, whether the crumbs of an eraser used to erase words of Torah require genizah…. Now I’ll sharpen my question further: it may be that Jewish law, as a legal system, really does need to deal even with edge cases (if only in order to clarify the principles), but I wonder whether a person is not supposed to have a simple intuition that there are limits of common sense, and that the Torah was not speaking about this. Do you agree? Assuming you do, do you also agree that these are principles of thought that are not derived directly from the Torah, but are prior sensible assumptions? That is, it may be possible to bring proof for this from the halakhic decisors as well, but in principle, even if there were no direct proof, it would still be obvious on the level of logic. I’ll just note that the above example is only an illustration; theoretically it may be that this is דווקא a good question, etc.
 
A similar question: are there limits to commandments beyond which being stringent is not “fear of Heaven” but stupidity? Example: let us suppose for the sake of discussion that the Torah said an etrog must be yellow. Do you think that a person who is meticulous with a magnifying glass, searching for every single dot on the etrog and checking whether perhaps it is yellow or Heaven forbid a dot with a different shade—has that already become stupidity? Now I’ll try to explain more: I understand that the line is very far from sharp, but assuming there is a line (is there?), when you hear a story about such a person—who asks and consults, and checks with one device after another, etc.—when you hear about such a person, do you think, “True, I don’t think this is exactly what the Torah intended, but really this is a high religious level, and there is no doubt that the Holy One, blessed be He, is pleased by it,” or do you think that this is just ignorance and irrational conduct? In fact, this too can be sharpened into two questions: (a) Is such a person more God-fearing? (b) Is the Torah ‘pleased’ by this? It may be that this is indeed foolishness and the Torah did not intend this, but such behavior indicates fear of Heaven (an indication).
 
In any case, what do you think about this?