My speculation: If Mt.Gox paid all they owes, I think this will give a good impression for people to trust more in centralized exchanges because they will think it's safer as the coins can be recovered than non custodial wallet where you lose your seed phrase, it's gone.
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I read an article that they will make repayment in October 2024 as you mentioned.
But suddenly they are now paying.
Question is that if they are paying in fiat so what will they pay. The original amount which they credited before exchange crash. Or they will be paid according to the current current value of the Bitcoin. If they will be paid according to the current rate so this will be profitable for them. Otherwise they are just receiving money which they staked and they are just getting back without any profit.