On desktop, when you click the Post comment button underneath a post, the appearing textbox is not automatically highlighted or selected. This causes a lot of accidental hotkey presses if you click the button and immediately start typing your comment because, as far as I know, most websites do select the field immediately. I'm curious about if this is harder to implement because of the nature of the script on the website to create a field for comments only after a button press, or if something else is the cause.