Well, If he is just using Bitcoin as currency and not holding it for long to gain, then for me he's just using it for convenience. Because if we say investor, you're waiting to gain from what you invested either for short or long term. Therefore if you're not gaining from Bitcoin then I don't think you're an investor since you have other purpose on how you use your Bitcoin.

Anyway, we have our own understanding and stance regarding this hence I don't think it's a big deal. We're free to use our Bitcoin depending on what we think is benefical and of course on what we believe in.