<p>You have provided answers which have  >10 <a href="http://superuser.com/users/1086/john-rudy#qpage_1-apage_1-qsort_votes-asort_votes">upvotes</a>, which matches the badge qualification</p>

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<p>As for Good answer, the answer had probably been migrated/deleted. Badges awarded generally <a href="http://meta.stackexchange.com/questions/17853/how-do-badges-work">are not revoked</a> .</p>