I definitely agree, as it is VERY easy to hide behind a screen and protest your expertise, but where does the accountability come into play, when both their research which could of further come from someone elses internet posting (which is a common theme on some sites, to see closely worded sentences all on the same subjects)
Personally I feel there is little harm on listening to others theories, and possibly learning new ways to look at and deal with situations that may arise, simply watching something on T.V. or on the internet is by no means practical experience. I also believe that the internet, which is full of all sorts of benign and useful information can be used as a catalyst for false information as well.
I know I personally have a form of protection for myself, and the other members of my team each have their own as well... I suppose, but as a unit, I see little in unification at least mentally of a lateral way to protect the team on investigations.
I'm curious as to other teams practices, where they gain their protection and what their theories are.
Personally I have been investigating and studying about the paranormal since I was a teenager, and I have been afforded great luck with being able to investigate in several different countries... I am by no means an expert, nor do I think I will ever be, as every time I think I have a better grasp on one area or another, something happens to spin it all around.
I know true knowledge comes from guided experience, and these lectures can go far more deeper than perhaps a blind statement on a website and I suppose everyone's reality of is subject through their own experiences, convictions and beliefs which molds their reality can be different..
Its nice to speak less of photos, E.V.P.'s and equipment and to talk more about each persons philosophical views of what works for them.

personally I have avoided to a point on digging further into dealing with demons, with my knowledge I have not run into one yet, so it in essence has not been a necessity.. but per chance I do... I have very limited knowledge in the appropriate practices to deal with such.