is passive bal tashchis wrong?
i see jews eat things (sometimes even to the detriment of their health, (because of the amount or quality) so that they will not go to waste
is this a Jewish thing to do (obligation, recommendation...)? source, please
in general, do jews ever need to do something (active) to avoid bal tashchis, when the bal is happening from the inaction of the jew? (obligation, recommendation...)