IANAL, but when it comes to contracts/licences, intent, good faith and fair dealing are important. Allowing someone a right that you know cannot be exercised wo

IANAL, but when it comes to contracts/licences, intent, good faith and fair dealing are important. Allowing someone a right that you know cannot be exercised would likely fail under all three of those. Your intent is not for them to have that right, you're not acting in good faith in claiming they have the right and you're misrepresenting the possibility. The law is not as prescriptive on the exact text as many programmers think. What typically matters in court is what people mutually understand/understood terms to mean, and clear attempts to mislead are typically judged against the one doing the misleading. So, yes, if it went to a court that was otherwise supportive of (L)GPL, providing (L)GPL code on a platform on which users certainly cannot exercise their rights would likely be a failure to provide and hence abide by the licence.