I think you're right. Googling "raw story" says it's about nofifications from Opera. Now I have to figure out how to turn it off. About half the time I use Opera and the other half, Safari. About 30 minutes after I posted here, I found a link in Safari that offered to turn off RawStory. After turning it off, I still see RawStory popping up when using Opera.
I give up for now as I have BIGGER fish to fry, but I'm guessing there is a similar "turn off" option is Opera.