Not going to read the thread because I don't feel like it.
I half agree, but it depends on the person. As someone who's had their drawings ignored by friends and family when trying to show it off, and someone who's assignments have been ignored by teachers (I was in a shit school, but I was also a brat) as a child, I can empathize with the frustration. Although as I've grown up I've learned that no one owes you their time, just like no one has a right to your time. Getting ignored for your hard work is just another facet of life, throwing a fit will only push people away more or get you a bad rep.
Not saying anyone here is throwing a fit, I'm just saying as a general analysis thing.
Personally I don't post for attention, just to archive my work, if I'm going to make something I may as well immortalize it on the internet. People can follow if they want, but attention isn't my intention, it's a bonus feature. Feedback is like a surprise present, full on detailed reviews is like when I forget it's my birthday and I walk into my surprise birthday party.
Although my mindset doesn't reflect everyone's, many people do post their work to show it off or to get feedback, and get disheartened with their efforts go unnoticed. Ain't nothing wrong with that, everyone is different.
As for the "create for yourself" thing, I guess it could interpreted differently depending on your outlook, like the "glass half full vs. glass half empty" thing. Also it depends on what it's in response to. If I'm trying to do emergency commissions because I'm about to be homeless and lose my pets to animal control, and I get that in response, it is super insulting. Of course no one is obligated to support me, but low-key telling me to stop trying to survive is unnecessary and rude.
If it's in response to me being ignored when posting something, I won't be mad because I don't feel I have the right to be as someone asking for another person's time.
This is just how I would respond, though! Not telling anyone how to feel, or what to do.