Stacking Extreme Switches.

One thing that puzzles me is the way coders choose to implement different type of scripts/codes in software.
Recently we have been converting a lot of standalone Extreme Summit families switches to stack. That procedure involves a command that is
enable stacking.
It sets all the needed parameters and reboots the switch. Fair enough.
However it also wipes out the configuration? Why? Ohh there is some magic stuff in the configuration that we can't keep or is totally changed.
Hmm I diffed the two files and found out that the only major difference is the port numbering. So when I edited the ports to X:X instead of X and reloaded the switch with the "none" stacking configuration it all worked. Why ohh why couldn't this be default..... Or maybe something is eluding me?