Should I compulsorily blast high authority expired web 2.0

I am having high authority expired web 2.0, In this written manual article in that and have pointed my money site.
What is my question is. In high authority web 2.0 already would be sufficient link juice. If it is like that should I blast the web 2.0 with GSA ser.

Take backlinks of these expired web 2.0 from ahrefs and majestic.
Put these backlinks into GSA and blast them.

This is a very good practice to get backlinks from expired web 2.0s because they already have some power to increase the matrics of money site.

Since they already have backlinks, I like to leave them as they are.
Sometimes I share the blog posts on social media.

Some of the expired web 2.0 I've scraped appear to have a lot of powerful backlinks according to majestic's topical trust flow. But despite having those backlinks the blogs are not even indexed in google. Now this could be due to them having blank content currently or more likely because their small amount of content that they used to have was erased when they expired and also all the followers and reblogs disappear once a tumblr expires.

I'm thinking the best course of action is to probably put fresh posts on them followed by Xrumering not the blogs themselves but the links that point to the blogs as was suggested just now.

You can build some blog comment to those web 2.0 sites

well, that is not a bad idea, the problem is how are you gonna get them indexed.