Is this something I shouldn't click because it is an actual ad? Or is it just something that shows up every so often only on this site.
I'm thinking that the majority of EMC players have already considered becoming a supporter, and those who aren't have reason. A corner ad isn't going to be too influential, especially considering most new players would not support, as with visitors.
Clicks do not cost, and only EMC site. Marketing disagrees Keep the idea fresh in mind, and also many new players (who by the way do support) might not ever end up on the upgrade page, this can help catch the eye to see perks labeled.
You do not get money for clicking on an add for your own site. Also, this is the great EMC, we do not want to do anything illegal.