Anyone knows what is this site saewaytrade? Collecting info

There are hundreds of thousand subdomains all leading to either a page with a block of random text or a redirect to a large domain. When searching up “my name” in quotation marks on google, it appeared in one of this block of text page that took it from an Reddit post that has my name from my main personal Reddit account. What are they doing and how do I get my name off off their site?

Screenshots and one …

block collecting domain google info large name privacy random reddit subdomains text what is