Here is a way to delete a Guest post disable,,,,
In recent months the recaptcha spam prevention service which is utilized by Invision Power Board and many other websites has been cracked. This has resulted in us receiving an inordinate amount of spam posts from guest users. We've found other solutions to prevent or drastically reduce fraudulent registrations by spammers and people who want to have public blogs which allow guest comments are pretty well protected, but we haven't been able to do anything about spam coming from guest posters on the main board. We were able to keep up with deleting it all for a while but have finally given up and disabled guest posting and commenting on the main board until a more viable anti-spam solution can be found.
Anyone who wants to post anonymously and not as their regular username is more than welcome to register under a new username for this purpose. Just try not to make too many new accounts if you would please.
In a completely unrelated matter, we've changed the setting to let users delete their own blogs so you no longer have to ask an admin to do it for you.
I think , you can delete a post of the Guest bro....