If you want to talk about what has already happened in the Lizzie Bennet Diaries (or what you predict will happen) that is wonderful. However! We request that you use the SPOILER TAG around anything that's a spoiler.
For example typing
[ spoiler]Lydia kills Dumbledore[ /spoiler]
without the spaces after the brackets will result in
Lydia kills Dumbledore
Pretty cool right!? Just remember to treat your fellow LBD fans with respect and make sure to use the spoiler tags.