"Oh you're a Graphic Designer? Can you make a logo for me really quick? It's for my cousin's birthday. I don't have any money to pay but I'll have multiple revisions that will cut into your actual paying work time, but then get upset when you ask for payment"
Thanos destroying the stones in Endgame makes ZERO sense, because his logic was that "he did it so that his 50/50 snap can't be undone by anyone", but the universe's population will normalize to the previous amount in just a century or so (which is NOTHING to Thanos, considering he is over 1500 years old).
Fun fact: Earth's population in 1920 was 1.9bil. Today (100 years later), it's over 7bil. So snapping earth's population to 50% would normalize back to over 7bil in less than 50years.