I meant that I'm looking for some ready examples. Currently I have to connect a microphone and test it myself, which I'm not keen on doing
2,035 karma · joined November 13, 2020
"Etc. etc." being how much? There aren't that many crypto exchanges. They don't have personnel in any way comparable in size to that of traditional finances. Also they're not part of bitcoin. It can operate without them. Centralized exchanges are actually part of traditional finance.
Two last paragraphs in your comment are completely out of context, but how is owning a private key for a wallet any different than owning and managing a password for your account on an exchange?
In PoW blockchains, on the other hand, it's just electricity.