1) Do you think that no one but you understands that, yes, Taiwan is, obviously, a 'country on Earth' ? You state it in almost every one of your posts. We all know Taiwan is a country on Earth!
2) Why do you never stop going on about the fact that you open DAPs and mod them? Do you expect adulation from people around the globe? Seriously, I've noticed you repeatedly added it to every post you made about the DX100, too. There are literally thousands of people around the globe who can also hold a screwdriver and a soldering iron, but they simply choose not to open their DAPs and void the warranty.
Sorry to sound irritable but really, it's about time someone asked. I don't mean it unpleasantly, I just mean that it's about time someone pointed out that the above 2 habits can come across as rather annoying to other people, and perhaps, until now, no one ever mentioned it and therefore you may have been unaware of it.
Other than that, I don't doubt that you're a fine, upstanding, and decent bloke!
Yes, I've noticed there have been mixed appraisals of the various AK100 mods. As I'm sure you're well aware, some people even seem to prefer the unmodified version, with whatever particular IEMs / CIEMs they happen to use with the DAP. Doubtless it's an impedance-matching issue giving rise to the various preferences for each IEM-AK100 combo. Personally, I prefer not to modify my DAPs, but that does not mean that I wouldn't consider buying a pre-modified DAP if the mod was broadly well-received by the community to begin with.