I feel 'content' IS a very generic word, but will concede that it is taken differently by different people. One thing, it is a whole lot more understandable than 'node' (but that may not be an issue - if it is not presented to the user).
To illustrate my point...
How is 'user profile information' not content? How is 'product information' not content? How is 'article information' not content? (I think they are content - just different types)
I'm probably 'flogging a dead horse', so I'll leave it at that.
As I said it is probably a cultural question. I won't name the information on my national ID card 'content' (rather property or attribute), but I would name the frontpage of the local news paper 'content'. But I am foreign to English. Just note that others might have similar perceptions about the word 'content'. I am not against using this word, nor do I have something better to suggest, so I am not really bringing the discussion further myself... I just would not call the group of properties in my user profile 'content'... Goba