MoLD: The Solution

We can fix the problems with a new roguelike, and have some fun in doing so. Meet MoLD.

MoLD is written in OO Perl - MoLD will be written cleanly in Object-Oriented Perl. This gets us free portability (for the backend, at least) to many different operating systems, and lets us do OO portably with decent performance
MoLD is Public Domain - There shouldn't be any quibbles about the license with this. The best license is no license.
Source - MoLD's source is available. In fact, as it's a Perl program, unless someone out there starts distributing things using the Perl compiler, the binary is the source.
MoLD will be clean - Care will be taken in the development of MoLD to keep the architecture clean, using abstraction, test suites for each component, etc.