yeah thought the same. 100k USD is next to impossible for a web developer in Berlin for example, and salaries for devs in Barcelona are considerably lower than here, maybe a max of 80k USD. That guy is living like a king.
SoundCloud for example, had a bunch of engineers earning around that. Probably all laid off now, though.
There are companies on StackOverflow jobs openly advertising €80-90k for senior developers now, and occasionally over 100k for specialist roles like ML or performance sensitive development in C++.