I'm not a big fan of new nodelets that require lots of database activity in order to construct. It just puts more load on the often-overloaded database server to calculate complex nodelets on every single page load when, for so many of the page loads you aren't going to even look at that particular nodelet.

For example, the "Other Users" nodelet can generate a significant amount of database load. There are many ways to fix this and it has been in my plans for some time but it hasn't been done yet.

At some point we should have a much better caching system and this type of stuff can be made many times more efficient. But we need to spend time implementing the better caching before we spend much time implementing new features that probably need it.

        - tye