This would have the potential to be beneficial -- if node titles accurately reflected the content. Sure if you find a node with a title appropriate to your aims, it may help; however it wouldn't help if you found an inappropriately titled node. Consideration aside, many nodes retain titles which aren't apt (in whole or part), particularly the earlier nodes. Moreover, once you've found an aptly titled node, chances are the content is going to be fairly decent.
A decent idea, but I don't see this being particuarly effective unless the search was based on the content (rather than node title), which would severely complicate the implementation.
After all, the alternative is fairly simple. Just figure out what you're looking for and Super Search for it. I'm afraid "Find Related" won't help if you don't know what you're looking for...
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