You can now use the comment feature to comment on posts right from your phone.
By default, the default account will be used to send/post the comment. If you have multiple accounts configured, there is a Spinner in which you can specify which account to use while commenting.
At present, anonymous comments are not allowed from the application, even if the post has permission.
The UI is very awkward now, with so many activities till you reach the posts screen, or the comment screen. So, I will be concentrating on the UI for the next release, so that it is simple to use.