Pid remapping increment of 100000

i see pid remapping increments are 100000, instead of, say, 65536 or 131072. is there a technical reason for this choice or is it for the convenience of those who only think in decimal? what problems would i run into if i used 65536?

You say pid but do you mean uid/gid here?
If so, what’s your /etc/subuid and /etc/subgid on your system?

Normal increments for new users should be 65536 (minimum to maintain POSIX) though I believe that’s configurable.

yes, i did mean uid/gid. was typing in a rush.