His Twitter thread is a mishmash of the zaniest conspiracy theories imaginable and plenty of concerning paranoia (the government is flying drones around his property to shut him up, "spooks" fired bullets through his mailbox, his vehicles were hacked, Hunter Biden funded labs in Ukraine to create pandemic viruses, and on and on) along with tons of promotion for his own book "The Truth About Wuhan - How I uncovered the biggest lie in history." He seems to have a psychology degree and a public health PhD and was a mid-level manager,
who likely wouldn't have any insight at all into the research activities of the lab..
Doesn't seem like an entirely trustworthy person..