One of the reasons I am using itch.io is that there is a somewhat well-known ‘hack’ for crowdfunding, called itch-funding. And it can kinda happen now, since it’s mostly about showing sales volume and setting a sales goal for a project.
That being said, I think for the feature to really be better than what itch has, it would be if multiple goals could be set for the product, and maybe a well-documented tag that could be used to help find games trying to crowd-fund using the in-house feature or something (though I guess finding ones that are crowdfunding in general could be cool as well).
I like the idea of making crowdfunding a bigger feature on RPG Trader, for sure! Since crowdfunding is quite an involved process, and there are a lot of variables to take into account, it won’t be available soon. Rest assured that it’s on our general roadmap, though.