In this task, you are given a public comment from online platforms. You are expected to classify the comment into two classes: obscene and non-obscene. A comment is obscene if it is considered offensive to the public sense of decency, for example because it too obviously relates to sex or contains language regarded as taboo in polite usage.

Comment: Those same fisherman also leave the state with the profits that are not subject to an Alaska income tax.
Non-obscene

Comment: Yup. That crap has got to stop...

In addition, if your sport isn't making money for the university, it has to go. We should not be subsidizing sports at the expense of academic programs.
Obscene

Comment: Who gives a crap where the word originated. I spoke about definition, not etymology. 

It's utterly irrelevant where it originated or what it meant when it was created. What matters is what it means today, what people understand when they hear it. Not what it meant once upon a time.

The word "proves"used to mean "to test and show to be false", giving English the expression "the exception that proves the rule" - which literally meant "the exception that shows the rule isn't actually a rule and is not really true".

Over time "proves" lost the meaning of "to show the falsehood of" and only the meaning of "to show it's true" remained, and the proverb survives even though it's modern day meaning makes no sense. It's a kind of bizarre claim that the the rule is true BECAUSE there are exceptions to it.

Words change their meanings over time - and if you don't know the current meaning, you cannot communicate honestly, logically or usefully.

Obscene