Hello. Its strange that you cant modify or delete posts u've made in this forum.
Deleting your account also takes forever. @administrator pls do something about it
All posts get admin approval before going public, any post that contradicts the forum rules is NOT approved.
Giving privilege to modify a post after approval defeats the aim of manually approving the post as the poster can modify the post with stuffs not permitted on forum.
You can post a reply to your post detailing the changes or delete or re-post.