Client picked up a partial manual action three weeks ago - unnatural links to site, affecting a section rather than the whole domain. First one I have had to deal with in about four years, which itself tells you something about how rare these have become.
The thing I cannot do is attribute it. The client has bought from at least five different sources over two years, some before I was involved, and the notice does not name anything. There are example URLs but only three of them, and two are from a source I would have called fine.
So the question, and I would like actual cases rather than theory:
Has anybody here had a manual action and been able to establish, with something better than a guess, which seller caused it? Not 'it was probably the cheap ones'. Something like a cluster in the examples, a pattern across multiple sites you own, or a seller whose whole customer base got hit in the same fortnight.
I am asking because the standard advice is to disavow everything you are not certain about, and on this profile that is close to half the links and several thousand pounds. Before I do that I want to know whether attribution is ever actually possible or whether everyone just carpet-bombs and hopes.