once again, theres not really a 'really really *REALLY* excellent' reason for ScummVM to exist
ScummVM has a purpose - to reimplement adventure games. That is why it exists, because it was created by it's authors to perform that task.
why shouldn't it be done? its not like its child pornography
A project like ScummVM is almost impossibly huge. It has at least as much code in it as any commercial project I've worked on, and some of those have been very large. The project has gained support from many programmers (like me) who could have chosen another open source project to work on, or create something new on their own.
One reason is because ScummVM has a clear focus and purpose on preserving great adventure games. That task in itself is huge and there are so many games that we could all be working until the end of time.
If we started implementing features like jpeg libraries, FAQ readers, it would soon spiral out of control and ScummVM would be a monolithic application which wouldn't fit on any device, with features most people would prefer using their favourite app for anyway. This would mean we would have more code to maintain and bugfix, and would take time away from what we're all here to do, reimplement adventure games.
and on a side note, why is it that when anyone has a feature suggestion it gets knocked back? i think were forgetting that its a community project...
Yeah, it is. So are you offering to do the work? A community project is one that people are free to modify and add to, not one where it's users get to order around the programmers. They're doing it from their own free time, you know.
This particular request has been considered by the team in the past, discussed, and rejected for many reasons.
If you want to implement it, you can, of course. The code is GPL and you can download and play with it to your heart's content, and even release your own version, if you wanted. It just won't appear on the ScummVM site.