I've been using Akismet for years and bragging about it's spam-flagging abilities.
However, since several hours ago, it seems to be broken. I run a very busy site, and from near zero-spam (Akismet plus Conditional Captcha), I'm now getting hundreds of spam comments per hour.
They are not flagged as spam, but appear in the moderation queue. And a notice in grayed-out front says "Awaiting spam check."
Have others experienced the same problem?