OIC...your info is from google...why not ask a poll here how many users actually encounter 50% of those you listed?
1. 4 fps not enough for those who need 5fps when doing Bracketing
I never try 5 frame bracketing yet. Will try to confirm. But so far 3 frame bracketing no issue.
2. mirror vibration
not sure which particular scenario you referring to...but there is a Mirror Up function.
3. no unlimited continuous shooting which limit at 100-frame limit for us who shoot star trail
no leh...120 above also can...i think you are referring to using the menu to shoot time lapse...not sure if D810 solve this...but if u use a remote trigger...no such issue
4. moire which D810 claim to reduce it but yet to confirm
this one subjective....D800e supposed to encounter more..but there are certain scenario to encounter this..maybe i heng...i no kenna those scenario...this one i cannot confirm.
5. Poor LCD for Live view which is grainy and not very helpful for manual fine focusing while opening up to maximum aperture helps, but only on lenses that don't exhibit focus shift as a function of aperture
Poor LCD yes...but is it a flaw? more of lower resolution compared to 5DM3 LCD...
6. handling issue like mode button and record button is too close which result in you pressing the record button too often
metering mode selector switch which is together with the AE-L/AF-L and AF-ON controls is a bad move.
Not sure why that is a bad move...never used other DSLR before...but u won't accidentally turn it though...one is press..one is turn..
anyway...i am not a Nikon or Canon fanboi....i just feel those issues i face are not flaws..but more of specs different...eg...low fps...i cannot afford D4/s....so cannot say is flaw...more of budget constraint.
the first batch AF was really a flaw