Ensure proper sterilization, thwart many failures. Boiling/simmering substrate, possibly using additives, and microwaving has GREAT potential to ensure clean substrate.
Ensure proper sterilization, don't fumble around with bad
batches due to unnecessarily repeating incorrect technique.
It is better to save a new grower their prints and syringes by
suggesting proven methods than to let their inexperience waste
their hard earned money, which they were probably reluctant to
throw out on a not-so-sure deal in the first place.
I'm not even sure what you are trying to argue, or who with...
As a disclaimer, I am in no way a "dubbed guru."
And I would still recommend waiting to see if someone can
follow up with what they claim to be a working technique
before trying it...and that goes for noobs and gurus alike.
(since I have so much pull here)