I just received a part of the Terms of Use that you agree to by installing the plugin and it goes:
Third Party Text Links
Third party text networks supply text for display in 404 to 301. These networks may collect your visitors’ IP addresses, in native or hashed forms, for purposes of controlling the distribution of text links. 404 to 301 collects anonymous aggregated usage statistics.
By clicking the button here below, you agree to the terms and conditions and give permission to place text links on your website when search engine crawlers access it. Your website’s layout, performance and interaction with human visitors should not be altered or affected in any way. Please note that this feature can be deactivated at any time under 404 to 301 Setting > Help & Info > Plugin Information > Disable UAN, without affecting any other feature available in 404 to 301.
Meaning:
Cloaking, which is specifically banned by Google and will result in a search engine penalty.
Allowing ads to be inserted into their site over which they have no editorial control, including PayDay loan ads.