carnival73: As it's game-related I don't mind the self-promotion. I wouldn't have heard of the Kickstarter otherwise since I don't usually frequent the Kickstarter site.
A way to think about it is to consider what your opinion would be if every Kickstarter involving a game with some kind of "old-school" mechanics posted a thread here advertising their project. Along with all old-school style indie games just wanting some free advertising for their game. At the moment it doesn't seem particularly spammy as we don't get too many of these, but if it increased to a couple a day, then to over 10 or 20 a day, would you consider that to be spam? Even though the content of each individual post hadn't changed at all.
It's one thing if someone is actually a part of the community and wants to bring their project to the attention of the community, but it's a whole other thing when you've just got people from projects creating accounts on numerous gaming-related sites for the sole purpose of spamming posts like this one. We don't consider it particularly annoying yet because the volume of such posts is still pretty low, but I see that as all the more reason to discourage this kind of behavior before every small development team starts considering it a viable advertising route.
Something that may be worthwhile to consider is having a single thread in which Kickstarter projects can be advertised (we might already have one, for all I know), then if people decide to ignore that thread and create new ones for extra visibility then it will be rather obvious that they're just thumbing their nose at the community and spamming the forums.