Dear @Alice-and-Jeff0 and @Kirstie ,
Thanks for your replies. However, you address my more minor concern--why are words like google blocked--but not my primary concern: Why are such words blocked with such an alarmist, scary sounding, all-caps phrase, instead of just omitting the forbidden word or replacing it with a gentler set of characters (like just a dash, "-"). I mentioned in my earlier post what the detrimental consequences are of the all caps style, that would not obtain with a simple omission or other gentle replacement.
You do say that all this would not be an issue if one always used workarounds, such as "online map" instead of "googlemaps". True, but when one types quickly in various exchanges with potential guests, it's hard to always make sure to remember which are the forbidden words, and invariably one will accidentally type something like "there are many nice cafes in my Park View neighbourhood, which you can find by googling" or something.
My suggestion is not "don't block". It is simply "block in a way that will not make a guest worried the host is using inappropriate or offensive language in the text".