Are links generally bad? As mentioned, Google guest contribution by still evaluates backlinks when generating search results. It is therefore not advisable to devalue all links – in fact, this can even destroy rankings for highly competitive keywords. If you do so anyway, you can devalue them using the Disallow tool.
Devaluation is only interesting in three cases:
Links were created by an agency in a poorly disguised manner. A typical pattern that Google can quickly recognize: More than 400 words, one guest contribution by or two links to Wikipedia or Spiegel, and a link to your site. Such links are denmark number data already recognized by Google or will probably be recognized soon.
Harmful links, mostly from abroad, are placed in large numbers and come from low-quality sites. Such negative SEO can be used by competitors to gain a competitive advantage.
A page links naturally
But was penalized in the past. Links from such guest contribution by pages could damage your ranking in the long run. Be careful: you relationship level of the lead magnet should have an experienced SEO expert evaluate whether a link is good or bad.
Apart from these situations, I would advise you against devaluing links. Otherwise, you can quickly damage your own pages.
Conclusion
Backlinks are relevant. Backlinks are currently rich data guest contribution by still highly valued by Google and should therefore not be ignored. But the far-reaching effects of a Penguin update should not be ignored either. Anyone who builds links too aggressively could disappear from the search results for some time.