Spam
It is interesting how many people try to post a comment with just a link in it. Those are easy, they get nuked automatically.
Actually, I wish my email spam filters worked as well as the ones on this blog. Here I seldom get a bogus block, and I seldom get one that goes through that I have to delete. I delete a couple hundred junk mails that snuck through the filters in thunderbird every month, and have to scan the ones t-bird marked as junk because about 10% of them are not.
One of the things that I hate is that PayPal, and my ISP send me a lot of junk. I hate it because if I mark them as spammers then I will miss anything that is important, like someone breaking into my account. Charter.net is the worst because they send the junk to all my email accounts.