Ok, today I definitely got tipped... weird. I had two Airbnb guests. One French guy who left after I had gone to Stockholm for the day. By lunch I receive a message "Hi, I'm sorry, I broke a decoration in the window, I will leave money for you." It turns out it's this plastic tree (for hanging jewellery on) that I'm not really fond of and that always breaks when it falls in the floor. I have glued it together more than once. And he had left 100 kronor for it, that's so sweet, but really too much.
And then there was this Korean woman who also left after me. I can only speculate here, but she probably saw his 100 kronor bill and thought it was customary to tip Airbnb hosts. Why would she otherwise leave a 5 Euro note?