Well, delivery reports are a privacy violation -- since they're automatic. Fortunately, AquaMail doesn't support it
With read receipts it's up to you to click or not -- but I do understand the OP's case.
I could, in theory, change the current setting for "send without prompting" (which someone wanted, true!) -- to a three-state including "don't even show them", but:
Every setting change also needs translation updates, and also breaks things for existing users who are already using the non-default value.
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But I do agree -- read receipts are annoying and selfish, it's like the sender shouting "me, me, me, I'm the most important person in the world, you have to respond".