Forum Moderators: Robert Charlton & goodroi
I think it's pretty poor the way quite a few "SEOs" spread the FUD for Google on the disavow rather than exercising some simple reasoning and letting people know part of the reason it was introduced was:to be able to help in negative SEO situations and/or in a situation where you hire a SEO and they do something wrong without your knowledge and/or in a situation where you actually built some spammy links...
Matt Cutts:
Hmm. One common issue we see with disavow requests is people going through with a fine-toothed comb when they really need to do something more like a machete on the bad backlinks. For example, often it would help to use the “domain:” operator to disavow all bad backlinks from an entire domain rather than trying to use a scalpel to pick out the individual bad links. That's one reason why we sometimes see it take a while to clean up those old, not-very-good links.
Google's John Mueller reshared this on Google+, so clearly we have Matt Cutts saying this, Google's John Mueller sharing it again on Google+. [plus.google.com...]
[seroundtable.com...]
When using a machete in surgery it would be nice for the surgeon to know what he/she is looking for - otherwise site's may be destroyed. The tool, whilst a great step, might be like trying to find a needle in a haystack. I wonder if Google might be prepared to enhance the tool to be more specific.
...to disavow all bad backlinks from an entire domain
We recommend that you disavow backlinks only if you believe you have a considerable number of spammy, artificial, or low-quality links pointing to your site, and if you are confident that the links are causing issues for you.
My emphasis here : We recommend that you disavow backlinks only if you believe you have a considerable number of spammy, artificial, or low-quality links pointing to your site, and if you are confident that the links are causing issues for you.
and if you are confident that the links are causing issues for you.