Woah, reading this made me not want to move from 04.
Why did they change it - seems a whole lot harder. I use this all the time, just change the shape to suit whatever I'm typing at the time. I came looking for the 'no user name' answer and didn't really find it. As one comment said - the line is wasted anyway, still have to select and delete to start typing from top - even if it just a space. This is so irritating. If you have a cluster of comments that need to be read together - eg one per row - you have to get rid of that space or all you see is blanks and have to click individually. That bloomin auto inserted name. Another 'feature' that just makes things harder.