So if it's all about he giving, why would GenCon not simply donate the money without asking for a logo? When I donate money to an organization, I ask for a tax receipt, not a logo. I don't go tooting my horn about how much I've donated to organization XYZ, I just give them the money quietly.
I'm not sure, and good question. Mutual gain perhaps as "look at us - good Samaritans" and CCF gets money? Don't know.
If you're reading between the lines, then how about asking why GenCon made a big stink about it? Or why they even bothered asking for CCF's logo? Or why CCF would've taken all those donations by the co-creator of D&D, if CCF is morally opposed to D&D (by the way, the concept that CCF might be morally opposed to D&D has been brought up by the various bloggers and article commenters while CCF itself clearly states that it is not).
But would they have taken the money if the co-creator wanted to put a "Proud Supporter of CCF" on a personal blog? Again I don't know. Does CCF only take money anonymously? Again I don't know.
All good conversations here in either case. I like it!