We've been looking for an in-office knowledge base solution but we're a bit lazy (more accurately swamped with client work) so this was a no-brainer to try when I saw it was PHP.
Why not? If it has a decent API it should be easy.
Or you can write your own converter - it probably takes ~30m to whip up something in Python.
There's a huge difference between converting data from your little hobby and converting the vital knowledge of your company. It's different because it's more mission critical - you don't want to screw it up.
It's also different because the bigger dataset is likely to have some customizations and other "small" stuff which tends to matter in big perspective. You might be okay for losing e.g. votes if it's a small data set, but you really want it in with a big one.