You're calling him a liar, but the Reddit link even contains a link to citations as far back as 1996 that seems to substantiate that he has been very involved with the technologies used to create the mRNA technique for the vaccines. Ad hominem attacks are not helpful in validating the point in question or the person's character. I don't know your qualifications, but he does seem to have the qualifications and a trail of citations that deserve more scrutiny before passing judgement.

https://patents.google.com/patent/US5589466A/en

An excerpt from the 1996 patent by Robert Malone and others:

"The present invention relates to introduction of naked DNA and RNA sequences into a vertebrate to achieve controlled expression of a polypeptide. It is useful in gene therapy, vaccination, and any therapeutic situation in which a polypeptide should be administered to cells in vivo."

[EDIT - added summary from above patent for more reference] - SUMMARY OF THE INVENTION The present invention provides a method for delivering a pharmaceutical or immunogenic polypeptide to the interior of a cell of a vertebrate in vivo, comprising the step of introducing a preparation comprising a pharmaceutically acceptable injectable carrier and a naked polynucleotide operatively coding for the polypeptide into the interstitial space of a tissue comprising the cell, whereby the naked polynucleotide is taken up into the interior of the cell and has an immunogenic or pharmacological effect on the vertebrate.