Extension request
I started a request for an extension here:
http://www.mediawiki.org/wiki/Extension_requests#Private_message_extension
Could someone with the knowledge to create it or who knows who does work on getting it under construction?
Just as an aside, unless your extension request is solving a very interesting problem (or if its something that would have a large impact on a public wiki like wikipedia), it is kind of unlikely you will get programmers to work on it for free.
With that said, its possible, its just kind of unlikely.
Cheers.
We could always see if there's anyone else who would be interested in such an extension. Multiple people who would be interested would give some help.
Is there anywhere that would be good for people interested to signup?
You may want to weigh in on this conversation about ways to motivate developers to build extensions such as this one.
