The ability to delete a post here disappears rather quickly. You can go back and edit and/or update a post later. I suppose you could just go back and erase everything. Keep in mind, however, that forums like this are mechanisms for creating knowledge and sharing information. Every post is useful. Even if you discover that you posted something in error, others will be informed by it. These threads can be searched and people with the same question will find the answer, and there will be others with the same question.
What PEoD should do is go back and update his posts, or add new ones that elaborate on what he has discovered. No one will hold it against him for asking the question and everyone will benefit from what he has learned.
I have been to forums where a handful of self-appointed despots rule the roost, and no one dares step out of line. They're not much fun, and not very informative. That's not the case here.