However it very much depends on how the question is phrased and what information they are given.

There have been around 4 or 5 people over the years who have claimed they've spoken to lawyers who said the Diku licence was enforcable, although obviously that's no more verifiable than any of the counter-claims (i.e., on all sides there's no more proof than "I spoke to a lawyer and he said..."). I've also spoken to a lawyer myself, although I was told that his response didn't constitute legal advice and that I couldn't pass it on, which made the exercise somewhat pointless.