You can remove a comment a supporter has left on your project page by going to your project dashboard then clicking on the comments section.
This page shows all the comments that have been left on your page. You can then click on Hide comment to remove the comment from your page.
If you make a mistake you can easily undo the action by selecting hidden on the visibility dropdown then click on the search icon. You would then click on show comment so make the comment visible again on your page.
If you are a supporter wishing to remove your comment please click here for instructions.