The author isn't saying they don't speak for themselves, they are just saying don't rely on this info. They say they wrote it to clear their thoughts, and probably haven't done a high level of verification.
It's a law of the Internet that any post complaining about grammar or spelling must inevitably contain a grammatical error of its own. Yours is no exception.
And without wishing to be unkind, the fact that you are adverse to this phrasing is not of general interest, which is likely why you're attracting downvotes.
You seem to have failed to comprehend my comment. It has nothing to do with grammar, but rather the "I take no responsibility for the content of my post" (my summary of their wording), part.
> Neither the Oxford Protein Informatics Group nor I accept any responsibility for the content of this post.
And just stopped. I get it that you don't want to speak for your employer or academic institution but the "nor I" part is just weird.