I download useful info from the Internet and don't rely on others to back up the info I need.  That includes info on Youtube, forum sites, emails, pdf files, etc.  I have so much info stored locally that I have not had a chance to study all of it.
The information here is truly invaluable and could save many lives in the event of a major disaster.  Many people would be devastated if it was lost.
I understand your concern, but I don't necessarily agree.  A major disaster is game time.  Once the game starts, there's no time to learn how to throw a football for the first time, if you know what I mean.  Whoever needs to log on to this site during a major disaster, to learn how to start a fire or whatever, has completely missed the boat on the usefulness of this site.