Doesn't really suprise me if ppls trophies/save games have all been wiped and that the online service has crashed. How typical of Sony really, what a useless pathetic online service they offer.
The only game I use to play sometimes online was sf4 which they destroyed with a patch and never bothered fixing. My PS3 has been collecting dust ever since then. Sony are a proper useless bunch of ******s if you ask me.
Sorry to be pedantic, but it was Capcom that broke SF4, not Sony.

but to fix the issue all you have to do is unplug the CMOS battery on the PS3, this voids your warranty but most of the systems affected are way out of it anyway.