Still in Japanese (if that's what it is) today. But at least if you click on it it comes up 'Southwark' and gives info about the station in English. Very strange glitch - or is our Underground network being infiltrated?
Yes. On reflection an Interpreter may go with the pronunciation, which I was doing, and the Translator would go with the literal which it seems you translated. On maps I'd go with translating every single letter without regard to pronunciation like you have done. Well done.
I lived in Shinjuku in the late 1970's and early 1980's. Where were you?
I was in Shinagawa-ku or Meguro no mai from 76 to 81. Loved Japan and continued to go back even after I was sent "home" to South Africa to go to boarding school as the schooling (at my school anyway) in Japan was a little lax.
Perhaps this is unsurprising given the confusion about whether the Overgound is a National Rail or Underground service. I haven't checked every station down the line but most seem to be the same as Forest Hill. Strangely Penge West is only National Rail though!
On the same note, Google also seems to regularly locate HOP somewhere along the A20 between New Cross and Lewisham, when typing in SE23 on the map. The location name disappears when magnifying the map, just as well...