Not everyone can put plants outside of their grow area, if I did this then they would freeze in a few minutes. I dont mind losing the 75 cents worth of dirt and fert they used, personally I don't see it as being wasteful.
People have different opinions on what is wastefull and what is not, I think it's wasteful when I see someone watering their lawn they obviously don't. I'm not going to tell them they are an idiot because my opinion is different, it is their money not mine.
Not even entertaining the thought of risking them pollinating my females is worth more than the cost of dirt, light, and seeds to me it may not be worth it to you, but it is to me. Everone has their own way of doing things, just because mine is different than yours does not make me stupid, so get off your fuckin high horse.