How heavily should a Google stack be used for link building?

I am hearing a lot of talk around the "Google Stack" but it cant work as well as they say. Every one of us has access to Google drive, docs, sheets, forms etc. Creating a public document is super simple too. There has to be some limitation to the use of this for link building. Will i see results if i create 50 public documents for 50 different keywords that I am looking to target or will this result in me getting caught out?

Following, would like to know as well.

I recently created a Google stack for 2 aged projects I have where no other link building was done and it definitely pushed up the impressions a lot and clicks so I would say it works but don't think you need more than 1 stack really to money site maybe stack others as tier 2 or just focus on HQ tier 1 links Nd just use the stack for some diversity but it does help yes.

choppa2choppa said:

I recently created a Google stack for 2 aged projects I have where no other link building was done and it definitely pushed up the impressions a lot and clicks so I would say it works but don't think you need more than 1 stack really to money site maybe stack others as tier 2 or just focus on HQ tier 1 links Nd just use the stack for some diversity but it does help yes.

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So what your saying is a stack is better to boost your domain overall rather than to purchase it several times to point to target keywords for specific URLs on the same site?