While it can be a bit daunting to keep up with some blogs' comments due to the sheer volume that isn't an issue I normally have to deal with.. though it wouldn't be such a bad problem to have 🙂
However, as anyone who runs a blog will know, there are a lot of people out there who like to abuse comments to promote themselves or their clients' products. The more obvious ones are easy to categorise as spammers and automated tools like Akismet or Bad Behavior or BlockScript can block a lot of that junk quickly and easily.
But that isn't the only type of spam, and it's also not the only type of abusive behaviour that goes on.
Am I missing anything obvious?