All of this is so fucking stupid because the solution is simple - require ISPs (and VPNs if they so wish) to provide optional content filters to UK account holders. Adult account holders can opt into filtering on a per device basis or the entire account. Child account holders (e.g. kids with SIMs) get it enabled without choice until they turn 18. The filter can block porn and it can block VPN and does so effectively. It doesn't require random businesses around the world to comply with UK law.
It's not rocket science.
I see the same being completely viable for farming equipment. In fact it's something that countries should mandate for new equipment to stop all the lock-in bullshit.
As for Slashdot, I haven't seen this site receive a major update for over a decade. The original version used to be a mess of Perl. I imagine these days it's a mess of Perl and some other stuff with some very fragile scripts that can't cope very well or consistently with different character encodings let alone being UTF-8 end to end. Using a subset of HTML as markup probably doesn't help either.
I could see this also being very useful for people wanting to flash embedded devices from cloud based software. But it could also be used to drive braille readers, point of sale terminals and anything else that works over serial.
I cannot conceive that anybody will require multiplications at the rate of 40,000 or even 4,000 per hour ... -- F. H. Wales (1936)