Maybe I'm too much prejudiced...but I'm 99% confident that some idiot filled a complaint.
...Then they search the spam sites in google and find this site,
then assume we own those spam sites.
Doh?Are they completely dumb or something?

What do they think....that there actually exists a public forum,
where spammers would speak/share stuff about their actions?
Gee,I think it's quite obvious why such a site wouldn't exist in the first place...
And to my point of view...this behavior also makes me suspicious:
why would anyone need special explanations via personal e-mail...
can't they read plain English both in the main page and the forum?
I seriously doubt it's forum spam and the like...but just in case,
maybe we should change permissions for all spam-related sections,
so that they're viewable only after someone gets logged in...
At least we won't have every 'genious' out there nagging you with stupid e-mails,
like we're responsible with what kind of spam gets posted in their boards...
Basically they search their site name in google and find spam results that lead to malware.
Then they should protect/keep their sites and forums clean,
or whatever else is needed,in order to not get this kind of results:
does it say anywhere around here that we are the Google Ranking support team or something?
Quite the contrary...most probably we're also searching them as well at the moment!...

Angry or not,don't know...but this attitude is certainly not to be appreciated:
since they're web admins,they'll have to deal with these problems by themselves,
instead of accusing others because of their inability to do so...
As for live links,no,I don't think also...there's only a handful of uploaded archives,
and all of them are password-protected for obvious reasons,thereby I doubt about it...