My understanding is it is an arxiv-style repository but with absolutely zero censorship or curation for the most part. In practice, that means it ends up being a stable repository for actual researchers to host their research preprints easily, and an army of crackpot paper uploads that are very entertaining to read.
I used to work for arXiv a long time ago and keeping this stuff out was critical because for a few fields (anything having to do with gravity) it would dominate real science. You don't see crackpot papers in condensed matter physics because crackpots have never heard of condensed matter physics.
> An alternative archive of 38972 e-prints in Science, Mathematics & Other Scholarly Areas serving the whole scientific community
The few paper titles I looked at had an odd vibe to them. Is this like 'Conservapedia'?