I don't know... maybe you want to save 80% of the bandwidth your bitcoin client spends and 80% of the CPU cycles used to verify TX's...

I know I do. Don't care about gambling, and don't want to carry out their transactions. It's enough being forced to carry them on my HDD when they get included in a block.

Free market, baby. SD is free to spam the blockchain, I'm free to block them from my computer and network and not help them in any way I see fit.

BTW, this isn't a war against SD, it only a matter of having the option.
If you guys don't like me and everyone else having the option to block TX's we consider spam or prejudicial, who's trying to censor who after all?