It currently leaves the inline comment in its original state. It didn't seem like a good idea to have an automated tool touch the code itself, watson leaves it up to the developer to remove the comment.
The "resolved" tag only appears in the report when the issue is resolved on GitHub or Bitbucket to notify a user that they can either remove it or ignore working on that issue.
I wrote the rotating gallery myself, it auto-figures out the duration of the GIF and does cycling for you. I'll probably release it sometime soon...