Your response makes a lot of assumptions- that she willingly chose to go without a roommate (Her tweets prior to the letter indicate she had planned to have a roommate), that she wanted a 100K/year job from the start (she admits to feeling it was fair to have to start at the bottom), or that she is was expecting the job to be easier than teaching. You also negate her struggle by saying others have it worse. While that may be true, it doesn’t mean that this person’s struggle is invalid. You mention working full time for less per hour while also going to school, but I doubt you were doing that in SF in 2016. You don’t have to feel sympathy for this person. You don’t have to support or help her, but to make those that feel sympathetic or desire to help feel like they are idiots who are being duped by a con isn’t helpful.
Did she move to an expensive city for a minimum wage job? Yes.
But, did she plan to be in dire straights like she is experiencing? NO
Is her experience indicative of a larger issue? Yes.
Is she the only one with this struggle (or worse due to minimum wage not being a living wage)? NO.