[autoexec]

Because initially the "some evidence" amounted to little more than "A lab exists" and "leaks are a thing that has happened". Meanwhile the other theories were being supported by science like genome analysis. As time and investigations went on, more evidence came up, but when it started being spread around the evidence being presented was absolutely so weak that as a theory it was essentially speculation.

[plutonorm]

You are reading you info second hand. If you had gone to the evidence yourself you would not be saying what you are now saying. Read the academic papers, look up the facts from sources as close to the truth as you can. You can't trust people to give you information untainted by their pov. It was obvious to me at the time just by doing a modicum of research.

[autoexec]

It's not just me saying there was no evidence. It's the people and articles that were spreading the conspiracy theory.

"Now, we don’t have evidence that this disease originated there, but because of China’s duplicity and dishonesty from the beginning, we need to at least ask the question to see what the evidence says" - Tom Cotton

"at this point there's no reason to harbour suspicions' that the facility had anything to do with the outbreak, besides being responsible for the crucial genome sequencing that lets doctors diagnose it" (https://www.dailymail.co.uk/health/article-7922379/Chinas-la...)

"In principle, outward virus infiltration might take place either as leakage or as an indoor unnoticed infection of a person that normally went out of the concerned facility. This could have been the case with the Wuhan Institute of Virology, but so far there isn’t evidence or indication for such incident." (https://www.washingtontimes.com/news/2020/jan/26/coronavirus...)