I really don't like people who say what is the correct way to use some substance for some goal(religious in this case).

In the end they just more often than not, think that they know more than they actually do. This person who wrote that page definately seems to be one of those people and I think you are putting too much attention to his personal views on the matter(which he might think are "the truth"( how many of these you see even on the nexus anyway)). Well of course it's not good to preach around telling people how to use substances, but well, I guess it's better to contact that person in case something's buggin you about the post.

In the end we'll all walk our own paths which are all one in a trillion.

Even if some will practice some other people's advice/methods for a while, we will all end up walking our own way.