Since it's two cents, I'll make two points.
If the site is going to continue forward, would it be possible to shrink the six boards into one or two boards. Either a general board where all the posts go, or a "Books" board and a "Community" board. The six boards only make this site look considerably more empty than it is, especially when two of the boards (Games and RPG) haven't been used in months. At this point, it probably won't help much anyway, but if it's an easy enough fix, it can't hurt either.
I feel like this site is trying to continue to exist as a separate part of the internet from everything else. We make the observation that Facebook (etc.) has been the demise of this site, but there are many small to medium sites that exist in the shadow of Facebook. I think what has killed this site is it's complete lack of a social media profile. This site is like an Amazonian tribe avoiding contact from the ever more connected and integrated outside world. Slowly shrinking as its territory and peoples are encroached upon.
I feel like it's a situation of, 'if you can't beat them, join them.' The site is positioned well in some respects. We're a community that, by our name sake, is dedicated to books, which often features a very intellectual discourse on them; and last I checked on my Facebook feed, there aren't many things being shared that are similar. Maybe there's a niche market for this site out there.
So, I guess what I'm saying is. If you all want the site to continue forward and have any hope of growth, the site will need to come out of its shell and gain a social media presence. Yes, putting together a Facebook profile, making interesting posts on Facebook/Twitter, etc. Something that will drive traffic back to this site.
This means someone is going to have to sit in front of the computer and do the actual work, and the community as a whole will have to make a push to get active again around the same time, but I don't think its impossible.
Recent Example for a would be Facebook post title (Coutesy of Tom):
« Have you ever wondered what it's like to read The Iliad in the original Greek? »
I mean, this would get some clicks ... I think. Most people study part of the Iliad in middle school. We make movies about it, we take inspiration from it, and we're in a period in pop culture where 'authenticity' is seen as hip. Reading something in its original language is 'authentic', so to speak. This one post wouldn't save the site, but it hearkens to my premise above about a niche that the site could fill.