It seems to me that quite a few people feel far too comfortable describing things that they cannot do, or at least cannot do confidently or with any real understanding.
This makes me wonder. . .
they can, to certain degree, but they are being modest. they have seen what the experts can do. think of kyu rank versus shihan (most shihan don't post online). you have some of the experts like Sigman, Dan, Ark (Rob John really did the posting), Howie, and so on posted here now and then. even they will say there are folks above them. in asia, there is a saying "there are mountains higher than mountains, trees higher than trees". so even the experts will say they don't know much, up until they kick your ass to kingdom come. i had that happen to me many times in my martial arts adventure. thus, i would only be modest to say that i am a god gift to IP.