Some of the UK's biggest industries are money laundering and offshore tax evasion schemes for the very rich. They're literally worth hundreds of billions a year.
It's not a pub bore talking point, it's an oligarch and non-dom talking point. A lot of rich people would be inconvenienced if beneficial owner information records had reliable links to real people.
The pub bores are collateral damage - people who post unironically about privacy on social media.
