It's exciting to see there are people who achieved their goal weight and then continued to lose. I'm really curious as to the reason(s) why.

As examples:
As you got closer to goal, did you realize you miscalculated "way back when" and it turns out it wasn't going to be low enough?
Did you become attracted to the idea of getting smaller and stay in premaintenance purposefully to see what your "best self" might be?
Did your body just keep losing despite your attempt at maintenance and you decided to let the process lead you where it wanted?

Other reasons?

I'm just curious. Surpassing a goal is such an amazing thing to celebrate!