It’s missing a few key features though. Not being able to tweak the search text is a bit of a letdown since that’s pretty important for narrowing things down.
Can you elaborate on this? I don't really understand what you mean by tweaking.
Would you like variations that are more professional, casual, or critical?
As in what? Sorry but just like the other part, I'm not very sure what you're asking for here.
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The problem is you're talking with a bot, or a
human emulating a bot, rather. Don't let the bots bring you down, NotATether!

As a human, I for one applaud your efforts and think its great to see alternative resources being built around forum data. Will remember to add it to my arsenal the next time I am researching something.