I am not around the forums much really.
Personally I think the best way would be to integrate both the item browser with the wiki, not making a bot to feed the wiki.
This was already thought of when I added a “wiki” link on each item, leading to the appropriate entry on the wiki, so people would add there extra bits of information about certain items, but maybe that’s not enough.
The item browser does a nice job at gluing items together, that will be something very hard to achieve with a wiki bot.