Why this search site is marked as suspicious?

See: hxtp://urlquery.net/report.php?id=25145
Given clean here: htxp://sitecheck.sucuri.net/results/http://usestealth.com/
But I think it is the unsatisfactory WOT status that counted here for the urlquery result: hxtp://www.mywot.com/en/scorecard/usestealth.com

polonus