I am pretty sure that 99.9% "IDs" are randomly generated identification keys and there's no constant increment like Blockland's.The only other game that I know that uses IDs based on register increment is Torn City.
I never really liked the idea of blockland I'D's. I'd prefer names to be permanent instead of using I'D's.
lol whypermanent names are stupid
I just dislike it. Probably because of all the morons accusing by ID "ID racism."