There is a constant war over top-repliers, bottom-repliers, and inline-repliers.
If you’re replying to an email, reply at the top. Unless there is some overarching need to reply inline (hint – it is very very rare).
Bottom-replying makes me have to reread all the crap that has been left from previous messages before I get to what you wrote – what a phenomenal waste of time*!
Just reply at the top. Like every sane person does.
Please.
*Yes, you should also trim whatever you don’t need when you reply – but that’s another story.