Allows you to filter out Youtube spam.
YouTube comments can be very annoying and these comments can overrun a discussion thread.
But YouTube's comment reporting is too dependent on the community's idea of what spam is. What users consider to be spam is different from person to person, so there should be a way to filter out what you think is spam for yourself.
This extension is a spam filter for YouTube comments just like any e-mail service would have. It will learn what you consider to be spam and hide any spam it finds from you.
Mark comments as spam as you see fit and unmark any comments you feel were undeservingly marked as spam by clicking on the text as shown.