Not sure where it came from but you can see it here under S - https://en.wiktionary.org/wiki/Appendix:Glossary_of_British_military_slang_and_expressions#S
As for other words, I don't think we do quite so many as the Aussies but there are words like aggro, cheapo, wino, preggo used in every day speech.
Seppo is pretty common in the UK too, particularly in families with people in the forces.
Hidden inside the whatsapp->signal box in tiny faint font. I was wondering why there isn't a big "Discord -> Matrix"
On the concept of blender, I've been recently trying to get into Seamly2D/Valentina for pattern drafting - I'd love to see some kind of simple integration format between the two so that the FreeSewing patterns can be easily loaded into Seamly2D instead so the measurement files can be used from there and the pattern tweaked.
A lot of .ml users and communities are there just because it was the only big instance much earlier on. I'm in no way a tankie but still use .ml a lot (a community I run is on there) because it was the first one I made and i'm too lazy to look into new instances or switch.
Im not American so I probably didn't see a lot of this but my lasting impression was a lot of blustering and shit slinging but no real action or substance. Like everything he tried or promised either didn't get done or was half arsed. Basically i saw it as incompetence and damage through inaction rather than the malicious active damage he is doing now.