So content that might show up even after two or three years, although still useful and relevant might get ignored by users. This seems to be one of the problems for large blogs that might have suffered from Panda and Penguin updates. Panda and Penguin are Google programs that either push a blog or website further up search results and also does the opposite. Penalizes blogs and websites bringing down their traffic by about 40%. There are a lot of blogs and websites out there that have been penalized and have suffered.
If you see the usefulness of now wanting a time stamp to appear with your page showing up on Google. There is a quick WordPress plugin to help you do just that. Once installed it will remove the date that appears alongside your indexed pages on Google search results.
1. Please follow this link to install and plugin
2. These are the settings we choose for the plugin
You can also set the number of days before the date inclusion expires. We choose 60 and once 60 days are over the results will not show-up with the date. So there you have it - a plugin to help your WordPress blog SEO and help you recover from Google's Panda and Penguin.
Try the Date Exclusion Plugin for WordPress here.