Kirk here with a call to foreigners to improve their manners. The illustration you see was added by the Kumanichi to a letter to the editor from a woman who wrote to complain. One problem brought up in the letter was a group of people gathering with bicycles on the sidewalk in a way that made it hard for other pedestrians to get by. Granted, that's not very considerate behavior. The other complaint (and what you see in the illustration) was about foreigners talking loudly on a bus and taking selfies. OK, having lived here a long time, I recognize that most Japanese people like for their bus rides to be quiet. However, I was very interested to hear from a Chinese student who gave a little presentation in a class of mine on "bus riding culture" that she found buses in Japan to be a bit too quiet. She said she actually preferred to hear people enjoying conversation and found the typical silence on Japanese busses to be a bit stifling.
I recognize that it's a good idea for foreigners to respect the fact that many Japanese people like their busses to be quiet. At the same time, I'd like Japanese people to recognize that other approaches aren't necessarily "wrong" or "bad." Loosen up! ;)
https://news.yahoo.co.jp/articles/a006c0f4cd609f6478a7ccf9dd0b102f3961a8d0
P.S. The letter writer thought that local governments should teach us proper manners. Hmmmm, that doesn't seem very likely to happen; I can't recall receiving such lessons since arriving here.