Over the weekend we had a strange bug on a couple of the servers in our search cluster.
The bug generated some unrelated search terms in various swickis. The unrelated terms included the user-agent string for the searchers browser (eg: "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)").
Unfortunately owners of the affected swickis will have been notified of the bogus search activity in their swicki. We apologise for any confusion this may have caused.
Quite a few of you contacted us letting us know you noticed the problem and we thank for you that. We think we have fixed the issue and will be monitoring it closely for the next few days but as always would appreciate it if anyone notices it happening again.
Swicki Engineering Team