Advertising is a tricky business. Content producers can be as thoughtful and careful as they think they can be, and they can still make mistakes
, really, really bad mistakes sometimes. Audiences everywhere are ready to jump on an ad that wastes their precious time or misleads them or offends some sensibility. But it's not always (ever?) easy to make content that is both compelling and also good for selling widgets (or promoting a message). Check out a few of these links on advertising campaigns gone a bit wrong.
If you'd like to read more awesome and interesting stuff, check out this unrelated (but not entirely random!) Techdirt post