In the specific case, both the questions have been asked from a user that started to use SO/SE sites, and who registered on SO only 11 days ago.
Generally speaking, I think we should worry about questions that the same user keeps to ask both on drupal.SE and SO. I can understand if a user asks a question on SO while drupal.SE, but if the same user keeps to asking the same questions in both the sites, maybe it is better to suggest him to not post the same question in both the sites; both the sites are for developers, and I guess that the answer should not change if given on SO or drupal.SE.
To notice also that there could be a reason why the OP is asking Drupal questions on Stack Overflow, and not on Drupal Answers: If the questions a user asks about Drupal are just a minimal part of all the questions the same user asks on Stack Overflow, then I can see why the user keeps asking them on SO.