I have my own long history of near-blunders that were mercifully caught by other eyeballs before hitting print. (As well as actual blunders that weren’t caught—like misspelling Feargus Urquhart’s name multiple times in an old CGW story on Black Isle. )
The bottom line is that no site even pretending to practice some form of “journalism” should be without copy editors. I mean–even one. If you’re posting stuff online without someone vetting it any way first—congratulations, you’re a blog!