I do it to be apart of the search for intelligent life outside our realm of knowledge. I love the idea of group computation like block chain. I'd love to know more about what data I've been working on.
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.