[Typo3] Authenticated comment System

[Francesco di Francia]

Hi.

I hope i haven't choosed the wrong word, "authenticated".
There's a comment extension or a way to hack a comment extension so only 
registered users can write a comment AND they cannot insert a fake 
username as sign of their comment ?

At the moment i can only permit comment to registered users, but a 
logged in users can still sign the comment with a fake 
username/nickname/name.

I would that user should only fill field as Title, Comment/note, email 
while the Username is automatically inserted by the php script. In this 
way user cannot insert a fake username.

I think it's a very important feature. In website where user freely 
comment a _commercial_ product it's important to be sure to avoid troll, 
spammer, bad usage of comment system. It's the only way that the user is 
  responsible of his comment.

Thanks a lot,

Francesco

PS: i don't know if i should post it also in the dev list, any suggestion ?