These notes can not been seen by anyone else.
You can see your maps with comments in the Profile section, under the My notes section. Currently the maps with notes are listed based on the date you added the note, not by map title or author. This is the same as the bookmarks and makes the most sense to me.
To delete a comment, edit and remove the comment text and hit save. There is no delete button.
As always, feedback always welcomed and please report any issues.
You can also go straight to the My notes from lvlworld.com/membernotes
Remember, these are your notes only, you can not see anyone else's notes, so the links only appear on your own pages.