I have a theory about how you can measure one's (chemical) drugs addiction ratio based on how they are addicted to DF.
If you've tried at least 10 fortresses there is a very high chance you're addicted to it.
Then, it gets to the good ol' junkie situations:
1 - You can't go anywhere near it, or else you might have a turn and might never come back again. You think about your fortress, it's layout and your dwarves the whole day. You can't play it without fucking your life up. It's literally running all the time along with your operational system. You also use ASCII, and lots of personal mods made by yourself. You get withdrawal symptomns that last long after a few days (heavy drugs user).
2 - You use it often. You think about it a lot and you try to convince everyone around you that it's the best thing ever (you may give up after a while, but you still feel the urge to do so). It gives you a sense of fulfillment and joy, and it's not very hard to relate to people that are as addicted as you. Still, you feel it's quite time-consuming, but it's either not important enough for you to quit or you don't care much. May use ASCII or slightly modified vanilla DF. You may miss it, but it's not a real withdrawal symptomn (chronic light-drugs user, most notoriously weed/alcohol).
3 - You've tried to do it like the others, yet you're a little afraid or can't synthesize the most important aspects of it. You consider the most experienced users to be in an unreachable level of understanding but you still do it every now and then, most in different doses (Adventure mode) and you like to brag about it's use. You like the chatter about it but you often don't know about the most advanced aspects, but you still pretend you do. Uses Lazy Newb Pack and/or Forum Player (casual drug user, beer drinker and/or eventual smoker).
Anything else is a intermediary between 2 of those.
It could be polished but i consider it a nice sketch or theory project to say the least.