For me they’re a trusted partner who vets healthcare professionals in another country and allows them to allocate funds to fund everyday treatments for people who can’t afford them. I also give to msf but like that watsi is not disaster relief but healthcare. I use the universal fund so rarely choose a specific patient.
The stories and photos I’m ambivalent about and do see why one might object, but also how they drive engagement and build trust. I’d still give money without this - what you call voyeurism.
Cheap cynicism is really easy; making a difference is hard. I think Watsi makes a difference.