RE: Worst design decisions?

overdesigned rather than poorly designed. even if nobody
can use it, it's just an extraneous feature. an atm built
into the concrete that you'd have to stop short of and
get out of your car to use. now that would be poorly
designed.

</lurk>
Do you mean overdesigned in the sense that because that atm has features
that wouldn't be needed in it's current location, that it shouldn't have
those features? What about just making inventory tracking easier? (eg. "We
have 32 ATMs that are all featurewise identical and they're all
interchangeable" vs. "We have 22 ATMS with feature X and 10 w/o feature X")

Now, to get it somewhat related to network stuff:
s/atm/router/
s/features/capabilities/
s/location/network function/

<lurk>\