How do Google treat web 2.0 backlinks these days?

Web 2.0 increase your money site DA and PA but their back link is not helpful for increase your traffic.

Web 2.0 those have good PA; will benefit you. Otherwise, its a complete waste of time these days.

Just remember a quote - "Anything that can easily be manipulated; are no longer working with SEO, soon".

Hope you get the idea.

Web 2.0 backlinks from high authority websites add value to your website. The sites like Wordpress, Blogger, Tumblr, Livejournal etc are having 90+ Domain Authority and having a backlinks from these kind of website always treat positive by Google.

Web 2.0 increase your money site DA and PA but their back link is not helpful for increase your traffic.