The author shares how terrible it feels that X is true, without bringing arguments for X being true in the first place (based on me skimming the post). That can bypass the reader’s fact-check (because why would he write about how bad it made him feel that X is true if it wasn’t?).
It feels to me like he’s trying to combine an emotional exposition (no facts, talking about his feelings) with an expository blogpost (explaining a topic), while trying to grab the best of both worlds (the persuasiveness and emotions of the former and the social status of the latter) without the substance to back it up.
If Bob asked this question, it would show he’s misunderstanding the point of Alice’s critique—unless I’m missing something, she claims he should, morally speaking, act differently.
Responding “What do I get out of any of this?” to that kind of critique is either a misunderstanding, or a rejection of morality (“I don’t care if I should be, morally speaking, doing something else, because I prefer to maximize my own utility.”).
Edit: Or also, possibly, a rejection of Alice (“You are so annoying that I’ll pretend this conversation is about something else to make you go away.”).