PM them and ask. There is no way to know unless they credit them in an author's note.
No, it will not die, but don't be worried by your beta attacking a goldfish. Betas are usually only violent toward other betas, so your goldfish is safe. Also, I believe betas are tropical fish and goldfish are coldwater, but I have heard many sucess stories of betas surviving years in coldwater tanks and bowls. Best of luck
Just go to the category you want and look for the archive you want.
It should be automatically blocked. Maybe turning on the Profanity Filter will block it.
Fanficiton.net Quizilla is a quiz site. Fanficiton is a fanfic site. It makes perfect sense
Publish, Document Manager, upload your document, Manage Stories, add the chapter and the chapter name if you wish.
Yes, it is legal. Fanfiction is subject to intellectual copyright. You cannot officially publish your work, but as long as you are NOT earning money from your stories, it is perfectly legal.
Depends, really. Usually they show up in about five/ ten minutes, but that's just me. Sometimes hours...
Go to publish, then my stories. Click on the story you want to add a chapter to. Then click on Content/Chapters and then add your chapter. Ur welcome! :) I've put up a visual tutorial at http://www.ungab.com/content/adding-chapter-existing-story-fanfictionnet-tutorial --semjaza
Fanfiction.net has 10 up fanfic as well. Just select K->K+. But some stories might be rated wrong.
There's no way to read deleted stories, though you can always send a private message to the author requesting a copy of the fics you want to read (after they've been deleted, but they're usually deleted with reasons).
Review a story you like and check the boxes that appear on the bottom, or scroll to the bottom of the story and select what you want to do from the drop-down menu.
No, there is not.