I think there was a policy change after the takeover. Your impression might be outdated.Yes, it is aversion of the transformerless power supply where the 0.68uF capacitor limits the current. There is no isolation so the output is live and inclined to kill you.
Discussion of this type of supply is not allowed on here.
No. It is confusing because it is drawn upside down compared to the normal presentation. The two wires on the right of the drawing are the load connections. The diode at the right hand side should be a zener whose rating will define the output voltage.What is missing from the drawing is that the other side of the mains connection is connected to one side of the load
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