Cause I consider myself as a crupto enthusiast by I am more on the side of the altcoin rather than bitcoin. But Don't get me wrong I love bitcoin, but I like more altcoins when it comes to new discovery and applications.
Cause if you summarize it every user here is bitcoiners for using bitcoin.
for the matter of this topic, I consider Bitcoiner as someone oriented to Bitcoin primarily, and Enthusiast is oriented to more crypto currencies, not just Bitcoin, following all news and developments on daily level
from your explanation, I would tell that you are more Enthusiast than Bitcoiner
nevertheless, it would be hard to put enough options to fit all members, so everyone decide for himself regarding most appropriate option