I'm not sure what you're trying to say by "Let that poor soul..." We aren't in a position to "let" or "not let" this person do anything with their own body and

I'm not sure what you're trying to say by "Let that poor soul..." We aren't in a position to "let" or "not let" this person do anything with their own body and medical treatment. We are random people on the Internet. I get feeling the urge to offer unsolicited advice even though I don't necessarily agree with doing it, but the mindset that one is in any kind of position to "let" this complete stranger do something to themselves seems a little egotistical. Calling them a "poor soul" just reinforces that by adding condescension on top.