Sounds like this might be an import issue that can be fixed on the next run, could you please include this in a direct email?
At the moment search for guest is either ON or off. Is it possible to make max 10 search / usersession for guest or something?
Hm... other forum softwares throttle your search to one every x seconds, which we could do...
Though I really hated that "feature", to be honest
Yeah, but this is only for guest searches to minimize abuse!