- "just" moving the cursor is not an option when you're quoting a large conversation.
If you're quoting a large conversation you need to ask yourself whether all of it needs to be quoted. If it's too big for you to deal with when composing a message, you know for an absolute fact that it is too much to be quoted for the person you're replying to.
- Your signature will be at the top...
sigh
Only if that's where you told Mail to put it, for some obscene reason defying sanity.
- You don't need to go through the entire thing, normally when you're following conversations you just need to read the last thing and, sometimes even quote in-between lines.
Then you also don't need to quote the entire thing. Putting the cursor at the top is because you're composing a message, and you're starting at the top, with included text that is
not supposed to be kept verbatim in the reply. You're supposed to edit it. Putting the cursor at the bottom would encourage people to think you're supposed to "just type" and leave the entire quoted message included, which is stupid.
I could find other problems; and the worst thing is, it's not the way it should be. top-posting suc**, Apple mail encourages you to top post. Apple's Mail behaviour suc**. Period. Can we change it? No. ok, you either find an alternative or, like me, live with it.
There is nothing about putting the cursor at the top of a new message that is meant to encourage top-posting. It is meant to suggest that you are not adding to a message, you are composing a new one, and the already-present text is there to help you, not to remain there as-is for your recipient to have to scroll through to get to what you have to say.