Well Bill, there's two ways to accomplish that:
#1 You can "edit" the post and replace it with a jovial remark about how nice the weather is. Or replace it like some folks do with a plain and simple piece of punctuation like a period (kinda bland, but it works to get rid of your post).
- or -
#2 You can ask the moderator (Maxcast I think) to remove the thread/post.
How about a test photo right here?
Come on, I dare 'ya.

Give it a shot, live on the edge man. You only live once. aa
Bob