I wonder what would happen when the 888888 or 999999th blockhead joins blockland.
Well, technically, they'd be Blockheads 888700 and 999800, or something like that, due to all the skipped ID's.
But if we reached BL_ID: 888887, then I would imagine it would hit 888888.
Same with 999999.
You'd just change the number for the Public groups and such to, say, 8888888 and 9999999, or something else.
Or more easily, change it to one of the low ID's that aren't in use, like 10 and 11.