Message boards are a tough sell these days unless you're 4chan or Reddit, and especially if you're a very specific board i.e. a club for a vehicle that ended production 16 years ago. I see it happening to other boards I've visited over the years, including ones with hundreds of thousands of members and vastly more diverse interest/user bases. On the other hand, I follow four local XJ or Jeep specific Facebook groups and they are all very active - however the member crossover/duplicate posts are telling, and all of the content is either extremely stupid questions or for sale/wanted. I mostly stay subscribed to them for the cheap parts, and the ability to get quick help if I get stuck somewhere with cell service. They're an unfortunately necessary evil, and they're the new defacto due to ease of use and single-click registration. Like someone else said, Tapatalk sucks badly and it's the best option. A local facebook group for your vehicle/hobby of choice is easy to join and integrates seamlessly into your daily smartphone habit.
I found & joined

while jumping straight into building my XJ with no real knowledge three years ago, during which time I realized most of my Google searches lead to threads here. I saw that all the really knowledgeable guys posted here, and I registered/paid dues because I appreciate that kind of concentrated resource and wanted to contribute. I fall into the oldest part of the "Millennial" bracket though, and let me tell you... as a whole we don't give a flying **** about anything not easily accessible in a modern cellphone app format (and paying money to participate is a foreign concept). I'm a dying breed in that I prefer message boards to "social media". As a funny side note, this forum automatically censored my above f-word to **** which is pretty hilarious in a late-1990s AOL family browser-filter sort of way. It's outdated and telling.
This board already falls firmly into the greybeard-specific OEM knowledge or custom-fab welding areas, which are both fine and good but will not drive an increase in new members or activity purely because XJ Cherokees are not really being purchased by people who aren't already in the scene - they are likely already members of your group/forum/page/club. Cal touched on this in his post. Most people I know who offroad either have newer TJ/JKs or Tacomas, etc. Personally, I think that if

wants to remain around we'll have to drop the club dues/local voting/etc, and become just another frame & engine-specific tech board with occasional trail runs/local meets put together ad-hoc by regular members. I'm not sure how much bandwidth/traffic naxja.org pulls in with archived posts and the like, but I imagine it's not too much for a standard webhost server package. Who funds that is a different issue, but certainly not out of reach of a generous person or two. Think a Chevy smallblock forum or a FJ40-specific enthusiast board, not a fragmented regional thing... as XJs fall into an increasingly smaller ownership base, subdividing that group is a failing proposition. Everyone gets older and acquires new priorities as life goes on, and our online communities will shrink due to attrition (especially in our very specific case with California vehicle emissions :looney

but we can still keep the user knowledge base going as a whole.
That's just my $0.02 :dunno: