MayDay is supposed to bring better quality for the user. But as it has been applied as an algorithm, it has swept hundreds, if not thousands, of decent websites under the rug for what appears to be no effect on spam or SERP quality whatsoever.
My issue with all this is that many of my sites that have been hit have Adwords campaigns. New ads are added, landing pages checked, new campaigns created, support queries investigated -- all 100% in order with good clickthroughs and conversions.
My sites and pages that are not good enough to be ranked or even indexed any more in the organic search (the results that are pushed even further down the page with each passing year) are absolutely fine for paid advertising (the results that are pushed further and further in the faces of users).
I suspect an ulterior motive for the wide MayDay net as every time Google talks about it, they mention Webmaster Tools and how useful it is. Got banned? You have to sign up to WMT for a re-inclusion request.
Got banned? You have to sign up to WMT for a re-inclusion request.
But how would that motive be "ulterior?" As far as I see, WMT is essentially a genuine service, with little to no gain for Google. Plus, a reconsideration request certainly needs to come from some kind of a verified owner.
FWIW, I run AdWords campaigns for phrases that I already rank in the top three for. All of my positions for major phrases that I track have improved. My backlinks are organic, nothing paid for, nothing reciprocated, nothing at all has been given in exchange for links. Last time I asked a site owner for a link was a year ago. MayDay has been good to me across a range of sites.