@MNHQ - just a thought but with the large number of spam posts that come on overnight - apparently from the Far East but I'm not sure which country - rather than have someone delete each individual post after the event or try to stop posts from particular IP addresses (hard with VPNs masking the real address), why not ask IT to create a script that looks for specific strings of characters e.g. OPSS07.com and auto-delete posts containing those? There are a few recurring groups of characters in all of these posts that should be relatively each to identify and stop without human intervention.