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We've held Local listings at "A" for over a year. 2 weeks ago we dropped down to below the fold. I ran several reports and our backlink report shows roughly over 10,000 and it's growing every day along with new domain referrals with inbound spam links all using  the same core anchor text term. One domain is responsible for over 2,000.  These sites have Nothing to do with our industry and several in foreign languages. All these links are "NoFollow". My question is.  Although "nofollow" is known to protect you, I'm wondering with over 10,000 of them coming from 345 sites, ALL using our one core term as an anchor text has red flagged us?  If so,I'm planning on using Google disavow at the "domain" level. We are a local resort and until this happened we only had around 15 referral sites that are industry related. Hotels.com type sites and local tourist related sites. These new inbound spam links are so blatant and yes they're "nofollow", but I'm starting to wonder IF this off the wall inbound spam link pattern IS  indeed affecting us? Any thoughts?