Do I want to support 50k people that can barely find their way around winxp...
Let them keep using xp. Doesn't stop you from doing what YOU want, after your "people" are taken care of. Give the people what they want, if they want to keep using crap, that's up to them. I never advocate upsetting the status quo, unless I can benefit some how. In this particular case, I, and You, would gain no discernable benefit. Are we agreed?
...abstruse and incomprehensible to anybody outside their little circle.
Its "obtuse", but your point is taken. But let's be honest, many, if not every, circle of technical wizards in charge of a popular project gets infected with elitism to some degree. I will say however, and without really understanding the exact technical reasons canonical seems to be taking the technical "high road" and laughing some of their userbase writhes in pain on the ground behind them.
After the last of 16 mounting screws has been removed from an access cover, it will be discovered that the wrong access cover has been removed.