It’s important to tag paid links with the "nofollow" or "sponsored" attribute.

It's true that paid links should be tagged with "nofollow" or "sponsored" attributes. This practice is crucial for several reasons. Primarily, it signals to search engines like Google that these links are advertisements or paid placements, not organic endorsements. This prevents the transfer of "link equity" or "PageRank" through paid links, which is a violation of Google's Webmaster Guidelines. Failing to properly tag paid links can lead to penalties, such as a manual action against your site, resulting in decreased search rankings or even de-indexing. The "sponsored" attribute is specifically designed for paid links, while "nofollow" can be used for paid links or other links you don't want to endorse.