b1eXch has that feature.
In b1eXch, the exchange data is automatically deleted after 15 days, and users are allowed to delete the data earlier if they want to.
That's a cool feature. Thanks for sharing this information.
I think hosemary mentioned the exchange B1exch that allow manual deleting of data before 15 days. Most exchanges keep the data for some days so users and the exchange may not face any issues. I think it makes no sense to delete such data because if they've set a system where the data gets deleted automatically after 15 days then it's better to let that automatic system work on itself instead of deleting the data before that. One should also keep in mind that B1exch's manual deletion of data is permanent and not reversible according to their FAQs.
You are right, I just read the whole thing, their terms, and their FAQs. You are right, the data is not reversible but that's not a flaw, but a feature. It is subjective to everyone, also we can verify the deal with PGP, nothing to worry about. Even here you can verify it after 15 days, if anything happens based on Mobit's terms.