id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
18547	"Add rel=""nofollow"" to reply to comments link"	pearsonified		"This is an easy problem to diagnose and fix. Basically, the reply to comment links all contain a query parameter—?replytocom—in the destination URL.

Google does a poor job of ""deciding"" whether or not these are unique URLs, and as a result, these URLs are often indexed. This leads to duplicate content issues, which leads to users bitching :D

Here's a sample of some search results where the ?replytocom query parameter resulted in a bunch of duplicate indexing:

[http://www.google.co.in/search?cx=c&sourceid=chrome&ie=UTF-8&q=site:callingallgeeks.org+replytocom+#q=site:callingallgeeks.org+replytocom&hl=en&prmd=ivns&filter=0&fp=1&biw=1366&bih=667&bav=on.2,or.r_gc.r_pw.&cad=b Google]

Thanks!"	defect (bug)	reopened	normal	Awaiting Review	Comments	3.2.1	minor		close	gary@…