A few !!months!! back, I asked the question of what data is used to build the coordinate model (precedence and nutation) in Sky Safari 6 Pro and why it is difference from Stellarium (and accordingly, the coordinates of the Polar Star over time).
There is still no answer. One gets the feeling that the forum administration simply does not want to answer (it is not motivated by anything, there is no desire and in general they do not care at all about the interests/problems of users). And this is not the first time. The request is to somehow intensify the work of the moderators/administration of the discussion, to answer all questions at least somehow. If the moderators do not want to do this, then exclude them from the discussion and appoint new ones with enthusiasm and initiative!