Several months ago, @Jake Bunce had helped us import all our WordPress content to XenForo. Since there was no way to add auto-redirects to the new location of the content; we decided to let go of hundreds of back-links. After reviewing our Google Webmasters account, it looks like we 'should' at least have a few (~ 150-200) high-quality backlinks. The only way to do this, it seems is to hard-code them in the .htaccess file. My question is: How many of 301 redirects can we safely add to .htaccess file? What's the correct format of adding these links?