For me personally I am only pushing images such as progress images and documentation notes. As I plan to try and sell the game afterwards or potentially sell the assets, I am not going to put up my source code, only the completed game at the end of the jam. I appreciate that a lot of jams are to share code etc, but as this is a month long jam and we can actually do something substantial, the value of the code and models we will be able to make increases exponentially. For someone like me who is trying to make a living through selling assets and code, I cannot really afford to do it for free right now. I do release some free stuff on my store sites, but until I feel I can give my partner everything they want, I cant really do it all the time.