The point of this thread was whether it's possible to get finer grain from Rodinal with faster films, a worth while question and discussion is/was about whether adding other chemicals could help.

There's nothing inherently wrong with this idea, whether it's worthwhile is another issue but if someone wants to try there's no reason to attack their ideas.

There is a lot of disinformation about some developers usually frrom those who should know better, as MichaelR says Stand, Rodinal, Pyro, Amidol, all have their place, as for myths I fear it's usually people deriding them because they aren't to their own personal liking. It's the final results that count, how you get there is craft.