Removing fink-bld:

Fink doesn't remove package-specific users/groups, since these might have been
deployed on the system by some other method.  If you want to remove fink-bld, 
for example to change its UID and GID to a dynamically-assigned value, the following
commands should suffice:

sudo dscl . -delete /Users/fink-bld
sudo dscl . -delete /Groups/fink-bld

Then, if you want to switch to a dynamic value, run "fink configure" and choose that
option, and then run an operation which _could potentially_ install a package, like
"fink selfupdate".