Hello dear, Some guys join dp and start posting spamming visitors messages in random way to many members when i try to delete it it only show that i've deleted for reason but it does not disappeared example : that one was spamming and even banned so what not complately deleted when i click delete. thanks in advance
In a word transparancy. Having a record of all posts and visitor messages made is helpful in moderating.
BTW only you and staff members can see the "deleted" message, not normal visitors. So nothing to fret about.