You'd have to audit the source code first, though, which is not a trivial thing to do.
That doesn't mean assume nothing's wrong, but I'm pretty sure this thing will have some pretty talented people looking at it fairly early just for kicks, so of things to worry about, this isn't high on my list.
a) audit a tool like this and
b) have the chops to perform that audit
Reverse engineers. If you're nervous, just wait 2 months and follow Twitter.
Harder to meter: how understandable is the code? More verbose, but more easily understandable code will be far easier to audit.
Personally, I'd rather a million lines of code that are clear and obvious than 500k that are obtuse, terse and/or obfuscated.