I hope these aren't dumb/newbie questions.
In some groups common nyms have been hijacked. My question is how does the Delete All Posts From Poster function differentiate between posters that look the same but are in fact different posters? Is it safe to Delete All Posts when it is obviously spam, or do I run the risk of deleting a "good" poster as well.
My other question, if I have a filter open and I Delete All Posts From Poster, does it only apply to the filtered posts or to the entire newsgroup.
Thanks for your help.