A few days ago Google employee John Mueller said in Twitter on the question of whether spam recency effect on the way he will be assessed a search engine.
According to Mueller, no matter when it was published such content. If he breaks the rules, there may be trouble.
"If part of your site does not meet our guidelines for webmasters, but you want them to observe, it does not matter how old are these parts," - said Mueller.
Earlier this month, a prominent Western expert SEO-Marie Haynes conducted an interview with John Mueller. He answered questions about BERT algorithm, quality of content, links and rejecting others.