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Thanks Leonie, so I guess if CTR goes up, so must ranking eventually...

I've seen a lot of spammy links pop up for some of my smaller sites and they have usually been scrapers. When these would show up in OSE, the links wouldn't be on the page anymore. While I wouldn't initially be too concerned, here's a few follow up questions for you: How many of these shady links are you seeing in OSE? Do they have optimized anchor text? How many links/root domains are in your backlink profile? Are you seeing these links reported in Google webmaster tools? If these links aren't making up much of your backlink profile and they aren't optimized, I wouldn't be concerned. If you have a small link profile and these links make up a good portion of your profile, or they are highly optimized, they might be something to watch for. If you're really nervous, you could just use the disavow tool now.