The claim was "confirmed natural infection confers immunity equal to or greater than the vaccines is well established."
I don't think that's true, certainly not to the point of “well established.”
Here's another source:
Which produces a stronger immune response: a natural infection or a vaccine?
The short answer: We don’t know. But Covid-19 vaccines have predictably prevented illness, and they are a far safer bet, experts said.
Vaccines for some pathogens, like pneumococcal bacteria, induce better immunity than the natural infection does. Early evidence suggests that the Covid-19 vaccines may fall into this category. Volunteers who received the Moderna shot had more antibodies — one marker of immune response — in their blood than did people who had been sick with Covid-19.
In other cases, however, a natural infection is more powerful than a vaccine. For example, having mumps — which can, in rare cases, cause fertility problems in men — generates lifelong immunity, but some people who have received one or two doses of the vaccine still get the disease.
https://www.nytimes.com/2020/12/05/health/covid-natural-immu...
I am also not an expert, so my first link is to someone who is (an immunologist). She cites various sources for why she recommends still being vaccinated. Of course, while she is A doctor, she isn't your doctor.
What I think is that a lot of people posting here are certain they are right, while what most doctors seem to be saying is: "we're not certain, but vaccination is low risk and provides reliable immunity."
Now, those doctors aren't your doctors. They're making a general recommendation. Your doctor, knowing your specific health history, will likely be able to make a more informed recommendation.
Ultimately this is a cost/benefit analysis. There seems to be less benefit to being vaccinated for people who have previously been infected vs those who haven't. You need to weigh that smaller benefit against the risk of vaccination. If the risk of harm from vaccination is smaller than the risk of re-infection, isn't it still worth getting vaccinated?
Anyway, hacker news comments aren't medical advice and I am highly skeptical of folks posting here with such certainty about matters outside their expertise, especially about an emerging disease.