If you look on arxiv.org you will see all kinds of speculations by physicists that go outside our best current models. AFAIK a paper doesn't even have to be submitted for publication in a journal to be posted as a preprint there.

Also, there is always the alternative explanation that the reason other physicists have not paid any real attention to the author's claims is that those claims are, as I said in another post upthread, too vague even to criticize. (Wolfgang Pauli used the phrase "not even wrong".)