"Just asking questions" is also a common strategy among people who would like answers to their questions. I spent a long time in 2006 asking questions online about USA's actions in the Middle East, and what I found was that there was indeed an incredible amount of coverup and half-truths from both sides of the political aisle. Despite this, I was naturally called a "9/11 truther" or whatever insult could be applied to someone who wanted honesty from the world's most powerful government.

It's not in bad-faith or manipulative; there are people on this site who have a full and total belief that the Wuhan lab leak is entirely a conspiracy, so earnestly asking for clarification on how they came to that decision seems perfectly reasonable to me.

In 2003 if someone was "just asking questions" about climate change and its future effects, I don't doubt skeptics online would try to unfairly lump them in with conspiracy theorists claiming the world would be on fire by 2010. It seems to me that the best way to convince people that the lab leak is not a reality would just be to answer their earnest questions, rather than lumping them in with anti-vaxers.