When I try to delete post how come I'm enable to do so I know in the past it was an option.

Well, simply enough, JWB has disabled this option.

Why? Forums that don't allow deletion of posts annoy the heck out of me.

Why would you want to delete? Are you not trustworthy of your opinion contributed to a topic about something? Why don't you just edit in this case...?

What if you accidentally post a thread in the wrong forum and you want to delete it?

What is the harm in allowing deletion of posts? Hardly any forums allow it that I have been to.

I haven't changed any settings, I was pretty sure it gives you two days to delete the post??

I think it is a good idea to keep users from deleting their own posts. I find it makes people think twice before they post.

Yahoo Newsboards administrators will not allow you to delete or edit your posts :P