1. Totally, achievement points are useless beyond a certain point
2. Agreed
3. Not sure what you are trying to say.
4. Honestly I wouldn't complain since it lets you clear old raids faster for the weekly gold and focus more on the new ones.
5. Totally, I never liked there being PVP and PVE gear from day one. Specially since PVP gear requires mats only obtainable from PVE and thus meaning you need to do twice the amount of PVE if you want to do PVP. At the very least make PVP gear 100% obtainable by PVP exclusively.
6. Well, it helps newbs catch up and be able to play end game content instead of it taking 2-3 years. Imagine never seeing a gunner or warden end game.
7. You can clear those old dungeons really fast, so overall you can earn more money by doing them in adition to the newer ones.
8. YES, freaking yes 4 man mode was WAY better. Currently HM is so broken it basically leaves 0 player freedom as there is pretty much only one way to clear, no room for originality or improvisation. At that point if i'm supposed to farm it just replace me with a bot, I'm not doing the exact same thing over and over again for hours.
There is something that I would add,
Stop making events that only serve to help newbs gear up fast. That's what cost reductions are for; Give us events that serve everyone.