Comments I’ve Made
The Dashboard -> Comments I’ve Made page tracks comments you’ve made across WordPress.com so you can see when people reply to you. It will show your comment, one before yours, and replies after yours. The thread with the latest replies will be at top.
Can I edit comments I left on someone else’s blog?
No. It is not possible to edit or delete any comments you have left on other WordPress.com blogs. Blog owners are in full control of the comments on their blogs, so you can try contacting the blog owner and ask them to edit or delete a comment for you. If the blog owner has not posted any contact information, you can try leaving a short comment asking how to contact them directly.