My issue with providing financial support in a situation like this is it enriches the fraudsters allowing them the funding to then sell more bogus 'hope' to others with similar prognoses.
Even if it is $20 or $100, wouldn't you be more comfortable (and ethical) to find something that not only might provide some tangible benefit (whether it be hope, health or pleasure) but wouldn't at the same time enable the uncouth to profit from other's suffering.
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"Teach a man to reason, and he'll think for a lifetime"
~P^2
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