If you've been holding your #LUNA / #UST with custodians, it's time to make your voices heard.
There's a view that if you had a balance on exchange, you must have been a seller (traitor), not a hodler, and therefore deserve no consideration in any bailout/fork/airdrop scenario.
2/ Other reasons to custody on-exchange besides intent to sell:
* you bought and never withdrew
* you don't trust yourself with custody
* balance too small to justify self-custody hassle / transfer fees
* collateral value / account equity for margin
* staking
If it were Bitcoin, I would answer that none of those are good excuses, and people keeping bitcoins on an exchange are necessarily harming Bitcoin no matter the excuse given.