Add the possibility to post just ratings without comments.

Hello,
I want to give my users the possibility to just rate/vote the content without actually having to post some text in the comments... ideally if the user rates the content but doesn't post any text, Komento could auto-post something like "user has rated this content xxx stars", so there is still something posted in the comments list.
I think something like this would be very useful to those who wants to use Komento mainly for ratings.

Thank you