Hi, our main site was hacked, and this blog and all the blogs hosted here, in such a way as to kill links, for instance from search engines, so that a server error was returned.
This has killed our search engine rankings, naturally as search engines do not keep returning results that produce server errors. As well as traffic to this blog, all those hosted here, and to our main site.
I cannot see a way for anyone, except those with very narrow interests, to profit from this.
If anyone reading this blog has expertise in security please contact me. I have preserved all the files and requested the server logs from tech support at the ISP.