Plane Sailing
Astral Admin - Mwahahaha!
Many of these bugs can be fixed by giving us a better definition of what is and is not considered an attack, and/or restricting the Reaper feat to melee weapon attacks only.
I disagree, except that it might be useful to specify something with the interaction with spells (for 5, 6).
The others would be incredibly simple for any DM to make a sensible ruling on IMO - and I'm pretty sure that D&DN doesn't intend to go down the route of attempting to strictly define legalised rulings about stuff.
Cheers