You need to expand your universe. PDF is pretty good and people generally like it and don't think twice that they're not using, say, adobe reader. As for Aust

You need to expand your universe. PDF is pretty good and people generally like it and don't think twice that they're not using, say, adobe reader. As for Australis, there were loud outcries when it happened (as it always does with big UI changes, see 3.x to 4) but it quieted down quite fast. That's because "loud" doesn't equal majority and this vocal minority got used to, moved elsewhere or simply used some addon to keep things how they liked them.