The good thing about having an
Open Journal is the Google signal boost my posts get -- especially fanfic.
The good thing about
allowing anonymous comments is that I get to
mess with trolls talk to folk who don't have an LJ.
The bad thing about an Open Journal is that spambots parasitize
my SERP placement.
The bad thing about allowing anonymous comments is comment spam. Spammers' latest tactic is using the LJ email notification system to get around the "suspicious comment" screening; they post any random text (regardless of what language it's in) and sneak in a link to their spammy website that does NOT show up on your LJ because there's no anchor text, but DOES show up in your email.
They assume I'm gonna click it? SERIOUSLY? WTF? Do they get pay-per-click impressions? Or does merely visiting their spam site install malware on your computer?