I run Seti@home because my computer is often idle and so I give it a chance to do something.
The project is interesting.
I do not like when Seti@Home goes to 100% cpu and I have to force its termination via taskmanager.
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.