Problem is that this was tried before, with SearchWiki. When it launched, it was widely derided as being useless and distracting. Its usage numbers didn't show widespread adoption. And then when it was removed, there was much rejoicing.

Now, it's possible that SearchWiki just needed a few more iterations, and with a few details changed, could be a big success. There have been a few other recent launches that were tried years ago, didn't work then, but had a few more iterations and now are big successes. I could at least raise the issue. But unless I can tell a convincing story about why people would use this when they didn't use SearchWiki, it may be an uphill battle to get resources devoted to this.