Okay, actually I have 2 questions:
1. Is it only me or it's how WP2.5 was designed, it used to have a confirmation box popped up when I was trying to delete a post in earlier versions if I remember correctly, but now it's gone. If I delete a post by accident there is no warning box showed, it's a VERY bad idea if that function was erased intentionally!
2. So I have 10 categories, today I was trying to post an entry to category2 and category3, so I ticked those 2 categories when I was writing the entry. However strangely, after I pressed 'publish', I saw the entry had been randomly posted into category3, category7, category9 and category10! It happened only once (never happened during the passed 3 years and later). So has anyone experienced something similar to this?