The thing is that this is an international site, Tweaker.
There are several agencies in various countries that publish canning standards and that information can vary by organization and country.
We try to keep in mind that there may be more than one acceptable standard. Even in North America, you'll find people using heirloom methods quite successfully.
When we can, we encourage all canners (particularly new ones) to apply the latest guidance from the NCHFP/USDA (National Center for Home Food Preservation) for optimum, shelf-stable food storage safety.
Much of that advice is predicated on the new canner/bottler being able to access the recommended equipment which is
not always the circumstance for members located in other parts of the globe. It would be impossible to apply North American guidelines in those cases.
We are all here to promote food preservation and share our knowledge with other members.
My suggestion to you is that when you see a recipe that might not be up to date with the directions is to say something on the order of "This is an heirloom recipe that no longer meets the latest USDA/NCHFP (National Center for Home Food Preservation) guidelines <for this reason>. While this recipe is written in a relatively old-fashioned way, it is perfectly safe if processed using modern methods. If you are unfamiliar with these techniques, please go to
http://www.uga.edu/nchfp/how/can_home.html for the current information." in response to a query or as a no-star recipe review.
Omit the "perfectly safe if processed, etc" sentence if you don't believe the recipe is safe.
Also, if you would, please refer people to our Canning/Preserving/ Dehydrating forum. There's generally always someone there who will be able to give people accurate, current information to any queries.