"Foul language" is a very rough measure. The parent's thought could have been communicated with less sarcasm ("Sad that ... ?") and bitterness ("doesn't deserve").
Edit: Further, some topics, no matter how carefully broached, are just a bad value proposition. They may have a bad ratio between their intrinsic value (importance, relevance, etc) and how likely they are to spawn a low-quality thread (and how low that quality is likely to be).
Edit: Further, some topics, no matter how carefully broached, are just a bad value proposition. They may have a bad ratio between their intrinsic value (importance, relevance, etc) and how likely they are to spawn a low-quality thread (and how low that quality is likely to be).