> What research did you do before making your statement?
I clearly stated "as far as I'm aware" and that I am happy to be corrected. I appreciate the extra information, but the tone here is not appreciated and is skirting close to breaching the HN guidelines.
There was nothing wrong with you making a statement qualified with "as far as I know". You're good.
Likewise, there was nothing wrong with another person asking for details regarding what effort went into "as far as I know". They're good.
Someone who is in any given field and has researched it for decades might have more related knowledge included in "as far as I know", than someone who didn't. So it's totally reasonable to ask them how they came to know 'as far as they know', because that information is critical for everyone else to judge how much credence to lend to that someone's posts.
That concept pretty well known in other parts of the world. See eg https://www.moh.gov.sg/managing-expenses/schemes-and-subsidi... for a random example. Or https://globmed.co.uk/blog/pre-existing-health-condition-exp... or just ask Google for more.
What research did you do before making your statement?