This puts Patchou in a really weird position. The whole point of the current competition is to promote Plus! To let more users know about it and the benefits it has. Not only does this help the users themselves by enhancing their messaging experience in the long run it supports Patchou even more so that he can continue to make a better program! (An example of this is the new servers that Patchou has to constantly maintain and pay for himself.)
So by Msgplus being removed by download.com you'd also think other download sources might in the long run start doing the same if people respond to it as a positive thing (which i can't see why they wouldn't). This is completely opposite to what Patchou was intending with the current competition.
If Patchou does remove the optional sponsor then even with more visibility on the internet leading to more users downloading it then his income will disappear. I'm sure advertisements will bring in some money but will it be enough to keep Patchou coding msgplus? More and more users will mean that more sound servers will be needed in the future also if this feature keeps up its popularity.
I wonder what Patch will do/say to this