Go to your Admin Console and type the following:

ban_set wasteofpages

Hit "execute".

Do the same for these:

ban_set harrypooter
ban_set hpspoilerific
ban_set nowah
ban_set jacjoyce

Apparentlythese people are commenting with spoilers on unsuspecting journals, soif you fear being spoiled, banning them from commenting is a goodoption.

Thanks to ack_attack on read_hp for the head's up!