> A running number also carries data. Before you know it, someone's relying on the ordering or counting on there not being gaps - or counting the gaps to figure out something they shouldn't.

For example, if https://github.com/pytorch/pytorch/issues/111111 can be seen but https://github.com/pytorch/pytorch/issues/111110 can't, someone might infer the existence of a hidden issue relating to a critical security problem.

Whereas if the URL was instead https://github.com/pytorch/pytorch/issues/761500e0-0070-4c0d... that risk would be avoided.