Really Irritating Bug that Should Be Fixed ASAP:
I submit a comment on a song and it just vanishes. *poof* This usually happens from within the game. If I re-type and re-submit, it usually goes through just fine, but I don't see why a submitted comment should ever fail to register (barring obvious problems like the server being down, which isn't true in this case because I just ran a song and the score registered on the server).
Other Nice-to-Haves in the Comments Section:
The ability to click anywhere within what I've already typed to make corrections, rather than having to backspace all the way to my mistake and retype everything. Y'know, like any text field anywhere on the web ever.
The ability to track comments on a song like threads on a message board. Say the dude who dethroned me left a taunting message about it. So I replied and called him a poo-poo head. I'd sure like to be notified of his next comeback, rather than having to check for it once an hour.
In a similar vein, the ability to respond to a specific comment and have it show up as such. Similar to quoting someone on a message board.