The elementary support for xda and nokiaDeveloper were introduced by pH5 since early builds, since those forums run on vBulletin also. But he probably dint implement it fully.
Either those forums have changed structure now, or it never worked from beginning.

I visited xda and tried to get it working, but seems that it'd need lot of extra ifelse conditions and separate parsing style for xda. Biggest factor is that I dont use xda & I'm not feeling very excited to do the extra coding.
But if anyone who frequents xda, is interested, I could help you understand the basic mechanism, so that you can open up xda forum webpage in browser, check the html code and modify the xda parsing in app.

You can contact me via any channel mentioned in my profile details.