Hello!
I wanted to clear a big misunderstanding that is going on:
First of all, WarpPortal never TOUCHES the money you donate through the Extra Life page. It goes directly from you, the user and donator, to Extra Life. Warp Portal is basically acting, by raising awareness of the campaign, and they set a goal because they are confident WE can raise at least 1000 USD, and they will reward any user with in-game goodies to anyone who donates 5 dollars or more.
Second, you being the donator, can write this off from your taxes if you are from the US (or Canada if you donate to Canadian campaigns, WP's is based on US), this is by default, that is, if you do nothing but fill blank fields, the donation is yours and you get to use the tax deduction. Also, if you want, you can mark a checkbox, that is OFF by default, that allows WP to use your donation as theirs; so if you don't want or need it, you can CHOOSE to give the benefit to WP. But again, this option is OFF by default, you have to actively look for it and turn it on.
And last, it's about raising awareness, and helping kids, kids who are going through terrible conditions, at an incredibly young age, kids deserve to be happy. #ForTheKids