Forum/board software?

Why has this field stagnated so much? All solutions I am finding are pretty old, mostly Php/MySQL and apparently a big security liability. And the one of new iteration like Vanilla forums are on the other hand mostly featureless and with a UX that doesn't particularly incite user activity. What the heck are communities running on these days?

>>22
If I wanted to, I'd take the effort to do comprehensive systems documentation of a project. I routinely process different codebases to do abridged systems documentation for any codebase that doesn't have them, it's far too difficult to fix or extend any project without taking the time to document it.

If a project has a history of security issues and I decided to use it, then I would take the effort to document it more thoroughly. For any project that isn't so critical, I am happy just to let the community maintain it and rely on them to deal with any known security issues.