No, you can download as many times as you want, without having to register, downlod patches and upgrades, etc...
There is a register() verb built-in to $kahuna which will attempt to use your $network.maildrop SMTP server if $network.active is set to 1, and will open a connection to KCCMO`O and send me a MOOmail from there as well. Several information will be sent out: your IP (from $network.site), you MOO name (from $network.MOO_name), your port (from $network.port) and the port on which Aloha is installed (from $kahuna.port). The script is triggered when @start is launched.
The purpose of this "nasty" little guy is to have a rough idea of how many people are using the software. Please do not disable it. If those connections might be a source of problems on your own network, then of course. But please send them to me manually. I will not broadcast those infrmation on warez sites, or sell them out (can we do that?? ;) and will not use those information unless I receive specific confirmation from the user.
The reason I am doing this is because the box on which this package resides is from the University system. if one day I am being asked to justify how in hell I am using that box for, then I can show those numbers and say "see? that's why - it's useful, it's being used!".
And you do not need to use Aloha for educational purposes either. Use it for whatever you need. I do not care, and will not check on it to see what you are doing.