Hidden Linkbacks to Developer's Site!

Greetings, I would have given this plugin much higher marks as its functionality is pretty good across most themes. However, there are links to the developer’s own website hidden within the code. The links show-up when viewing the page source in the browser; simply search for “TROTTYZONE”. This is wrong and underhanded, and forces me to ask the question, what else don’t I know? I will no longer use this plugin or any plugin coded by this developer.