Editing other's posts

[PPOV]

I'm the owner of the forum and have been trying to delete a couple of posts from threads. Within the same thread I can get two different options when I go to the "More" dropdown menu. See pictures.
Would appreciate advice on what I may have done wrong.
Thanks.

[Graham Perrin]

Please see <http://n2.nabble.com/-tp1692207p1692344.html>.