If you have noticed that Google is indexing ReplyToCom links from your WordPress blog then you should not waste another minute, you should fix this issue a.s.a.p.
These links were not a real problem until Google Panda was introduced. After the release of Google Panda, these useless links have a great impact on search engine rankings and can actually get your website penalized. There are a number of ways to stop Google from indexing ReplyToCom links, here are two of the most common and easiest ways to do the same -
Method #1. You can simply add “Disallow: ?replytocom” (without quotes) in your robots.txt file.
Method #2. You can install WordPress SEO by Yoast plugin to fix the error for you. Install the plugin, activate it, go to the settings page of the plugin and select “Permalinks” and check the box next to “remove the ?replytocom variable” as shown in the image below.
That’s it. You can read more WordPress Tutorials to nail down some other common problems faced by WordPress users.