[AcerbicZero]

I was unaware that Twitter attempted to identify “offensive” tweets - however I am not even remotely surprised that the system doesn’t work well.

Seems like a perfect example of a Sisyphean task, if for no other reason than the adaptable nature of taking offense.

[inteoryx]

I'm not surprised that it works poorly. I am surprised that it seems to work randomly though. I would understand if every Tweet that had a curse word in it was marked offensive, and that wouldn't be a very good filter, but it would at least be clear what was and wasn't "offensive" from Twitter's viewpoint. Here, there doesn't seem to be any way to tell.