Unfortunately, when he recovered, he was following the advice of some Norwegians with particular views, and not the ME community, so they get the credit for curing him.
To me it looks as though he was well on his way to recovery when he was captured by the Norwegians with particular views.
Besides that, I think people should have and show empathy for him. His behavior does clearly demonstrate how difficult post-viral conditions can be, and he's gone through an unpleasant experience which has some resemblance to what most people in this forum have gone through, which most people don't go through.
How would you have us demonstrate our empathy for Paul Garner?
Paul Garner was uniquely well placed to make a positive difference to people with ME/CFS. He's benefited from years of education. He has professional roles as a Professor of Infectious Diseases; roles in Cochrane related to infectious diseases and evidence-based medicine. He is comfortably well-off. I think he has a close relative with ME/CFS; he had a small taste of how awful post-viral fatigue syndrome can be; people with much experience with ME/CFS reached out to him to help him and support him. He recovered, so has the energy to advocate. He could have been an enormous force for good.
Or, he could have just kept quiet and planned his next overseas holiday. Either would have been fine.
Instead, he chose to add to the stigma, propping up pseudoscience and suggesting that people can overcome post-viral fatigue syndrome with willpower and moral fortitude. He has used his platform and his connections to make it more difficult to get the research we need done, and it doesn't look like he's going to stop doing it anytime soon.
There are people who develop ME/CFS when they are young, and so never get to experience so many of the joys of life. There are the people who developed ME/CFS after Ebola - in countries with no welfare systems, who lost their families to the acute illness, who had their homes and possessions burned by neighbours afraid of Ebola, who now can't work to support themselves. There are people who lie in darkened rooms, with their lives, and those of family members who care for them on hold. All of us who have had our lives turned upside down and have lost so much; and all of the people yet to develop ME/CFS before an effective treatment is found. Those people are a long way further up my list of people worthy of empathy.
Sure, I'll give Paul Garner the respect that any human deserves. And yes, I don't know everything that made him do what he has done. But I'm not going to excuse what he has done, or understand how he keeps on doing it.