Is there a way for you to quickly filter out "spam" or "bad" links in your Ahrefs Backlinks report, for e.g with a pre-defined "spam score"? 

There is a lot of uncertainty behind what Google considers spam, and how they treat it. As such, it is difficult to create an spam score rating that accurately reflects this. 

The most precise way is still to conduct a manual review.

Here's how to do it.