But, Jalima things are still floating about in the internet, even though they have been deleted.
Whatever you put onto the internet is there for Google Search to find it, for ever . That is what is meant by Search - it has not been copied by anyone else or hijacked or repeated, it has been found where you left it, like a heart carved into the bark of a tree. It is where you put it, and if someone searches for words or phrases of it, they will find it. No-one puts things onto Google, they are still on the site where they were posted. Google is just a search engine, it finds things when asked, like a sniffer dog.
This should be engraved on the keybnoard of everyone who connects to the internet and uses it to post on social forums like Gransnet (and many others) or who has a Facebook or Twitter account and posts things on those.
Gransnet will delete a post on here, on Gransnet or on the Gransnet Facebook page, if you ask for it, but it is still possible to find whole websites which have been deleted posts, even if they are no longer on the current or future website. There is actually a question and answer on that subject on the net - suiteminute.com/how-to-find-old-deleted-websites-or-blog-posts-wayback-machine-and-googles-cache-video/
If you don't want it to permanently on view, don't publish it.