Should be, look at the bottom of the comment while hovering over it with your mouse.
Deleting comments
Yes, you can delete a user note left on your profile by another member: use the "X" in the top right corner, it's the right-most of three icons (the others being "Reply" and "Block")
See also https://support.chess.com/customer/portal/articles/1444877 for tips on what tools Chess.com provides to help with this.
Checking this member's other comments, you're not alone in this, and he's ignored an earlier caution. The user notes have been removed and this member's ability to post restricted.
If you need help, please contact our Help and Support team.
Is it possible to delete a comment from my profile page posted by another member?