I agree with the people saying "market it better." As it is, DupDetector looks like linkspam and is thus ripe for angry downvotes. Change the focus from strict

I agree with the people saying "market it better." As it is, DupDetector looks like linkspam and is thus ripe for angry downvotes. Change the focus from strict dupe-finding to "add additional context to the article people are already looking at." Copy some data about the comments, note the age of the previous discussions, even reproduce the highest-rated comment. These things will give it a more positive/helpful image.