I haven't used it regularly since the pandemic, but back then it was one of the few places (along with /sci/) where the "lab leak" hypothesis could be openly discussed. Anons regularly dug up questionable gain-of-function papers published by Shi Zhengli and the Wuhan Institute of Virology, and archived them. Meanwhile on HN back then (in 2020), outright suggestions that it came from a lab would get you -2 [flagged] [dead].