Whenever I write a blog post or respond in a comments section of a post online or a news story online, I worry that people will interpret me as an expert in some topic x related to the virus itself. That's, of course, not true! I am no expert in medicine, health policy, or epidemiology. I merely have a background in statistics and philosophy, and I accept that I am ignorant of these technical issues. On that note, it appears that this form of humility, if you will, isn't widely shared.
There is a pandemic of misinformation or what some have termed the infodemic, and I would prefer not to contribute to it. By commenting on others' posts, I believe that we're seeking to clarify unclear information or to ask a question that the writer may not have had the opportunity to address--for whatever reason.