There is so much information on static stretching out there that it can be hard to know if it is good for you or not.
I am a big fan of static stretching.
The more I work with the human body and focus on getting muscles out of pain, and keeping them out of pain, the more important stretching becomes.
It is easy to scare people with the unknown. Even if you have training in exercise or nutrition, they can be confusing, intimidating and create a sense of the unknown.
To complicate matters, there are many charlatans and snake oil salesmen who create misinformation to sell people their usually worthless products.