Actually, I don't know. Probably to incentivize the use of hints. I need to check better.
Discussion
I use Njump to create the nevents with hints for me 😂
Why? Which is the use case?
My app Quotestr doesn’t support using hex IDs. I use zap receipt hex IDs on Njump to look at zap receipt events to see if they seem legit. Then I copy the event with route hints that Njump creates and use it on Quotestr.