Add numerical ID for pageroute pages

hm, for what?

Personally I'm not a fan of ids, that are only used once and introduce extra database lookups just for looking up the identifier. I also prefer to have readable urls per default, which leads to using the page name in the URL.

So are there any reasons to switch to numerical IDs?

The problem with "identify by page name" is that the page name can be edited later. A numerical ID would be created at creation time and persist until the page was deleted.

yeah, but why would one need such a persistent id?
(I've currently not the need for it, in pageroute's code so it isn't there.)