If used lawfully. There has been much complaining about these three things in the past few months. There is nothing wrong with any of these teaching and identification tools. There is nothing worse than all these lone ranger types who all claim to have unique interpretations as if only they have ever looked in a bible. The same people who complain the loudest often offer novelties that have been shot down in times past. The same people do not like when they have to actually answer questions and offer scripture. Maybe they cannot. All of these tools can be used to correct many errors before they pick up momentum. Have you noticed the same thing?