With over 30 official JB ROMs listed here - Firmware archive | Samsung Updates
- for the GT-N7000 it is difficult to understand what exactly your complaint is about.
I believe owners of the 7000 would not want to run the risk of flashing roms and maybe making a mistake and bricking the phone. I've thought about it and looked at the instructions and found some of them complicated to follow. For example I can't go into download mode as per instructions even though I followed them to the letter. It just keeps restarting.