Blockland Keys start with 5 characters. This is a conversion of the actual ID number. The rest is randomized, so you're safe. All IDs right now start with like AAA I believe. Maybe just AA. That's because once converted, not all 5 characters are filled, defaulting to A. The problem we are talking about is the key's maximum, not the ID number. The ID number we are giving is when the key's max is hit - 99999. Changing the ID number has nothing to do with fixing the key problem, stop talking about ID fixes.
Did I explain that well enough?