Double blind review allowing arXiv submissions I am submitting an article on a conference that follows a double-blind review system. However, the following is mentioned on its dual submission policy:


  Papers that have appeared on non-peered reviewed websites (like arXiv) or that have been presented at workshops (i.e., venues that do not have a publication proceedings) do not violate the policy.


So, if the above is true, I might as well have submitted a paper that has also appeared in arXiv, where the identities of the authors are visible. Wouldn't that effectively constitute a violation of the double-blind review policy?
Wouldn't that effectively constitute a violation of the double-blind
  review policy?


Clearly not, as they state that it doesn't violate the policy.

Does it break double-blinding? Yes. But the intent is clearly to allow those who submit preprints, are in fields where conference proceedings are a thing, etc. to still be able to submit. It's essentially a compromise position of "Double Blind where possible, but we're not going to kick you out if you've broken it through the standard course of research."