Quote from: odysseus654 on October 29, 2011, 07:47:11 PM

If this is a case of "bad datatype" then rather than just "extremely unlikely success" then it seems like it could be mechanically verified as impossible to complete. I know there are an infinite number of possible transaction scripts, but they should be able to match parameters to function calls and do basic type checking...

Somebody said earlier in this thread that it's probably impossible to do such verification in polynomial time.
The protocol obviously cannot rely on heuristics, and a "transaction blacklist" in the protocol is definitely not desirable either. Such kind of things could eventually be done by an external tool through which you could validate your custom scripts, as also said by someone else in this thread. But the only reasonable behavior to the protocol is to accept them all.