About the saving spots debate...
I'm usually in a group of just my BF and I, or plus 2 other adults. If we end up leaving the line it is to use the bathroom or to get some food to eat while in line.
I don't mind if a family with small kids splits up, especially in these crazy
MNSSHP lines where we all line up 2 hours early before the party starts.
I think it would annoy me too though if a big group of adults came back at the last second. Especially if they then all split up for solo pictures.
On another note, I just finished writing my email to Disney about the Parks Blog statement of which characters would not be available to meet. If anyone else is sad about that, I encourage you to write too. Only way things will change.