I think you must be being disingenuous!.
You aren't making sense.
A gov can't keep printing digital money forever. That leads to rampant inflation. A litre of water becomes, £1, 10,...
If you get money in in from selling bonds, you can use that money to help pay your water suppliers.
If issuing bonds is a waste of effort then why do they do it?
And why did the gov just shore up its own bonds?
We, and the world, DO know about it, like we get told when the US Fed has to "step in".
The mechanics of fiat economies like the UK can be boiled down to this:
. Govt spends £s into existence
. Those £s are used (or saved)
. Each time they are used they attract taxation
. All govt spending, except that which is saved, eventually returns to the Exchequer
Inflation isn't simply a matter of the number of £s in existence.
Even more simply: Govt spending injects £s, taxation drains £s.
Why issue bonds? It's a great question.
Well, it's mostly vestigial, a hangover from the Gold Standard days (as is much of the language used around govt fiscal ops) when govt had to issue them.
As well as the hangover aspect there's also the provisions in the Maastricht and later Lisbon treaties which prohibited govt being directly financed by central bank overdraft ... Hmm, wonder why they insisted on that? Anyway, they no longer apply either.
As well as the above, it's free, guaranteed money for bond holders; a form of corporate welfare, a kind of ubi for rich folk if you like.
I assume you are asking about BoE intervening in the bond market to shore up pension funds?
Why? It was either that or watch some pension funds go kaput due to being on the wrong side of derivatives they'd leveraged.
We and the world know about what exactly?