I’ll probably end up going for that sort of middle road solution. An easy thing to do would be to simply highlight new words as I come across them and then go back little by little and add them to Anki while reading as much or as little as I feel like on a particular day. The only annoying thing is that for some reason, Bookwalker limits you to 40 or so highlights per book, so I’d be forced to stop at certain points to clean up the words. So, as you suggested, perhaps I’ll only add words that seem common, or that are at least relevant to the series (簀桁 for instance, while not a particularly useful word in everyday conversation, is a must for volume 2 
).
Also, I would definitely love to post in the old club threads as each time I finish a chapter, I always wish I had somewhere to send my thoughts. I may just do that!