Because we don't know what the full implications of training with untested, pseudoscientific 'tricks' from some website will be? Because for some people alterations in perception might be destabilizing? Because someone does not fully understand it? Because it's possible to train your mind to do the wrong things as a healthy person with no idea what you're doing?
Your assessment of site's content is just that -- an assessment by a random person on the internet about a subject they can't concretely demonstrate expertise in. A subject that, if misapplied, can ruin people's lives. If someone says "no I'm fine", that's enough.
Like I said before, I don't think anybody needs to justify to anyone else why they don't want to tamper with their mind. It's baffling to me why this isn't sufficient.
Not every random website on the internet is wrong and you can always cross-check information with respected books, authors and some personal advice from real people.
Your assessment of site's content is just that -- an assessment by a random person on the internet about a subject they can't concretely demonstrate expertise in. A subject that, if misapplied, can ruin people's lives. If someone says "no I'm fine", that's enough.
Like I said before, I don't think anybody needs to justify to anyone else why they don't want to tamper with their mind. It's baffling to me why this isn't sufficient.