member id hack (reset?)

[Keyser S?ze]

not sure what hack this is from as i did not install it someone else did and he cant remeber, but, my members have a "Member ID" in the postbit, well the numbers are a mess, i think because this was originally installed when we had like 80,000 members, but even after reinstalling it (after deleting all the members with 0 posts) the numbers remain the same

is there a way (or a upgrade) to reset this so it lists the number based on date/time registerd as of right now, so all the members that were deleted wont be counted

heres a screenshot, now we only have 10,000 members (right now) and this user "nigel" member id is something like 25,532

[Sparkz]

My guess is that someone has added

<smallfont>Member ID: $post[usertitle]</smallfont><br>

to the postbit template, which means that the number you see is the merely the userid-field from the usertable.
Resetting this would involve changing quite a few other tables too.