I wrote at length about this on my blog, having gone down the “all-in-one CMS” road only to do a full 180.
“Foundation re-defined - Going back to specialised applications”
I’m gonna unabashedly quote myself for the tl;dr
As far as our community goes, what kept people coming was never the Galleries, the per-project Wiki or the Advanced User Profiles. It was …drumroll… the forum. So now we were stuck with a sub-par forum that everyone used, and a bunch of other sub-par features that no one used.
In pursuit of the all-encompassing solution, I had downgraded the heart and soul of our website, and by extension our community, the forum.
Don’t underestimate the power of focus. Not even Facebook was able to compete with the more focused alternatives to its Facebook Albums (Instagram) or Facebook Chat (Whatsapp), so it shelled out billions and bought them without even merging them into their core product, exactly because that would have ruined the focus and users would flock to other competitors.
The way we’ll strive to use Discourse in my renewed community is to pass everything through the forum stream. Not every piece of content will originate from there, but it will all be linked from there somehow.