The same reasoning applies to every digit. So almost all numbers contain your favorite decimal digit.

If I showed this video to a friend who particularly enjoys the digit "6", she would not see the connection, as the video is about "3". No matter how many times I try to explain that there is nothing special about "6", she won't hear any of it.

I am quite convinced that the same attitude is rather widespread, and could be effectively monetized by anyone both charismatic enough and unethical enough to exploit it.