farci, what you've said,and more.
My main gripe is that despite the requirement that is placed on the airlines to identify the actual carrier the public (if they read the bumpf) don't appreciate what travelling on a different carrier means.
1) You have to find the correct check in (which may be in a different building)
2) Baggage allowances both hold and hand are not the same and check in staff refuse to recognise the differences (they should).
3) Service on board can be significantly different I have no desire to travel on AA if I've booked BA.
4) The nature of service on board varies - if I've booked a full service carrier why should I pay for items I would get free (food, meals, headphones etc)?
5) Safety
I'm lucky in some ways. I've worked in the industry and I know what to look for but for the average passnger it's a nightmare.