I don't see anything there that's incompatible with a high level of skill at mathematics. Honestly, I don't know of any opinion outside the realm of mathematic

I don't see anything there that's incompatible with a high level of skill at mathematics. Honestly, I don't know of any opinion outside the realm of mathematics that could be deluded or disorganized enough to make me think that the person holding it couldn't be competent at math. That said, before I trusted this web site as a source I'd look for evidence that it has been reviewed and improved by other people, because even a competent person is bound to make mistakes, and if he's working entirely alone his mistakes are likely to go uncorrected.