Thanks for the information about "Marigold", I updated all the Foo Fighters setlists to reflect it as a Late! cover.

I never added or removed "My Hero" from the Las Vegas setlist. It appears you removed it with your edit on June 28, 2010 at 8:00:16 PM UTC.

Regarding the notation of "Cheer Up Boys" and "Pretender" on your setlist, please read the guidelines. On setlist.fm all song titles are standardized, regardless of what was printed on the actual stage setlist from each show.
http://www.setlist.fm/guidelines