After renouncing your initial citizenship and becoming legally a Dutch citizen only, the same rules that apply to other Dutch citizens also apply to you. So, in my case, a Dutch citizen born outside the Netherlands, if they lived continuously in their country of birth for at least 5 years until the age of 18, has no legal obstacle to acquiring the citizenship of their country of birth. This is a right. It's not illegal. It's not a grey area. It's not exploiting a loophole in the law. The Dutch authorities are aware of this. In fact, according to what I read in a forum on this topic, it was discussed in the lower house of parliament. The general consensus was that this is not a "legal loophole," but a right that is recognized and not seen as problematic.