The fact that you used the word trying and politically correct implies a contrast to what you were sincerely thinking.
I don't see how that conclusion follows those premises. Even if I was thinking something different, the set of my possible thoughts is too broad and could mean many things.
This is my point (I hope I can clarify it finally). Often, when you are too direct or honest, some people get offended. Trying to be nicer by rephrasing what you say is called "euphemism", which in turn means "trying to be politically correct". It is "trying" because there is no guarantee that it will work in some cases and people will still be offended by the expression used. For example:
"You made a tactically unsound move" is code for "you blundered" (typical in chess).
"Person of short stature" is code for "dwarf".
"Next time consider adding some sources so one can learn more about all this :)" was my failed euphemistic attempt to say "Next time add sources because I shouldn't cure/vote you if you don't meet some criteria".
Then you started a series of lengthy responses that included several points beyond "adding two or three links". It suggested to me that you were a bit defensive, but my intent was not to criticize or offend. I understand that you didn't get it the euphemism. Perhaps more contextual knowledge was needed.
Ok, I know what your position is and I hope I have clarified the reasons after my visit and comments. We are done :)
I don't think nice people need to try to be nice to fit the label of being nice but that's just my opinion.
I understood the nudge to source the information I post properly and felt the need to elaborate why I opted not to because my preference in framing my post does not conform to the curation criteria curators may have set for their respective communities.
I already made my peace with the issue prior to posting a series of STEM related topics months back. If ever I post information that is unclear, I am open to discuss as this is the risk of posting without sources.
For future reference, it's all on WHO most of the time but one can take also use pathologyoutlines as this page contains summaries from WHO and other sources of literature to topics I talk about.