Purposeful != Deliberate
I know, I know, language is whatever is used by people. But wouldn't it be useful to maintain the distinction between similar words rather than trying to make them entirely equivalent? Yes, 'purposeful' can mean doing something intentionally, but that isn't its primary meaning. Purposeful: doing something with determination or resolve. Perhaps 'deliberate' would serve better: doing something consciously and with intent.
Bah! Grumble. And it's bloody Christmas in a few days. Humph.