The moon has no atmosphere for anything to burn up in.
To reach the sun, you'd need to cancel out all of Earth's orbital speed (averaging at 29.78 km/s that's a lot of delta-v), or utilise some clever cosmic billiards to reverse slingshot your velocity down low enough to spend the last of your fuel on the last few hundred m/s needed to deorbit into the sun. Not worth it, even if you could make fusion powered ships.
You could just launch your rubbish into a nice long suborbital ballistic trajectory and let it burn up like that. An incinerator would always be safer, and I expect a lot more efficient than using a Starship as a garbage scow.
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brb natural fistic, Fri 3 Jul 2020, 22:19,
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You could just send Sockcookers mum up to eat it all
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Fadgebadger Sweaty sumo wanks for everyone!, Sat 4 Jul 2020, 9:27,
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