All comments are displayed from top to bottom (newest last) which is right.
However, when you reply to someone's comment, the text input field opens at the very top of the thread. So, if you need to quote something from the comment you are replying to, you have to scroll all the way down and then up again. It is very inconvenient.
Could you please make the text input field open below the older comments?
"Correctness" when it comes to UI/UX is often quite subjective or based on individual preference.
In this case, when using the "Reply" link on a comment, which quotes the comment, moves the page focus to the Comment edit box (control), mitigating the issue in most cases, though I understand this does not address your specific use-case, that is:
*manually* copy/pasting to quote someones comment" rather than using the default "(In reply to <user> from comment <number>)" text that is automatically added when clicking reply.
However, the function in question is also a User Preference: "Position of the Additional Comments box", which can be modified here:
This is in addition to the User Preference: "When viewing a bug, show comments in this order", which can also be set according to the preferences of each user.
(In reply to Kubilay Kocak from comment #1)
> In this case, when using the "Reply" link on a comment, which quotes the comment,
No, it does not quote the comment. Only the comment number is referenced, and I am not permitted to change it in the Preferences. So I do all quoting manually.
> the function in question is also a User Preference:
> "Position of the Additional Comments box"
Ah, thanks for that. I must have overlooked it.
(In reply to Victor Sudakov from comment #2)
You're welcome Victor, and yep, I didn't mean it quotes the 'full context' as text, I meant it quotes the comment "by reference".