One thing that was handled poorly was the explanation to forum members when itT was acquired by maemo.org. You see, we were all semi-happy clams living in an autocracy with Reggie as our benevolent dictator. The problems began when that changed. The problem compounded when it was explained that we now had a vote in a more "democratic" process. Those new to maemo.org found that they had earned no karma while some heavy lifters, that forum members may have never seen before had gobs of karma.
The problem manifested itself when the forum theme changed. A simple "what happened thread" turned into a place for forum members who felt alienated and wanted to voice their displeasure with the whole process.
It also took an election cycle or two before some forum only members had enough karma to vote I believe.