ArXiv is not a bad service at all, but I think a lot of people think that everything there is more reliable than it actually is.
If you were reading papers in a serious way you should have already been tipped off by the fact that references in any credibly reviewed paper will rarely and only in exceptional circumstances cite an arxiv paper for these reasons.
If you were using it as a sole place to do research you have made a grave mistake and you should educate yourself on where credible work is published for whatever your area of interest is. Those typically cost exploitative amounts of money and is a separate problem, but isn't something you can just wish away because you stumbled on arxiv without understanding what it is.