I found the article quite interesting. I am not sure if the author was speaking of literal witchcraft, or if they were using the language in a figurative sense( I took it as figurative). The lesson here though should be of great interest to all.
Also, I took the admonition of being careful about what you say and who you say things about as a warning of possibly getting an inaccurate picture of a circumstance and spreading false information about someone. I guess it is all up to interpretation.
I have never read so many great quotes in one article! Maybe if we would all follow some or most of these guidelines we could possibly live in a better world! My interpretation.