I think we should be allowed the freedom to define ourselves however we damn please, for whatever reason we want. (For me, it’s laziness.)
Vagueness is totally an asset… ‘writer’ is vague enough that people can interpret it in infinitely variable ways. In the same way, I’ll offer a token response of ‘IT’.
The truth is that most people aren’t really interested in what we do/what we are — they’re just lacking creativity in making conversation. If you’re not interested in discussing it (my job is super boring to talk about), be vague and move the conversation along to another subject!