I think what can be annoying for some folks is the assumption by some that they are in possesion of some "special" information. Claims of "best ever" and "the only way" are arrogant and presumptious and should be treat with mild disdain ..
Nature and enviroment can vary massively and often the only way forward is trial and error , what works for one won't work for all.

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Fate decides who walks into your life, you decide who you let stay, who you let walk away, and who you refuse to let walk out.