The link is ONLY shown at the bottom of the admin page, never on the public site.
For the people who do actually donate for a free program that I put hundreds of hours of my free time into programming 11,377 lines of code... there is a check box on the settings page ("I have donated ..."), that if you check it, the affiliate link and donate link both go away. You do not even really have to donate. Check it anyway if you want. I do not mind. There is noting wrong with what I am doing here. Yea, maybe you do not like HostGator, but I do. My sites are hosted there. Their service is better than any host I have ever used. If you do not like it, you do not have to use this plugin.