Here's my thing. You show up for work. It's your job. If you don't, you get in trouble. Doesn't matter where you live.
The company doesn't seem to discipline unable to commutes, but likes to chase around reserves to see if they are in base. Make up your mind- care or don't. Reserves should have a longer call-out time anyway. Scheduling and the company shouldn't care where you are. If you are rsv and get a trip, why should they care if I descend upon the crew room in a hot air balloon at check-in time. We are all adults (by far- mostly middle-aged). You are responsible for being there when needed, you can make judgements and decisions on whether or not you should be close by. If you aren't there for a trip, then you should be held accountable like you would be at any other job, regardless of line holding status.
I completely understand why people commute especially at this company. I personally have been a commuter at stages in my fiasco of a career at US Airways, but always short term for various reasons (displaced and about to get furloughed anyway, base was closing, base was not open yet, division was closing and reduced to one base, recalled but still had a lease, couldn't afford to move three times in a year due to company's whims and fancies, whatever...)
It blew. It made the job and the life one miserable experience rather than two seperate things. You may as well always be at work, between commuting home and checking flights and worrying. It particularly sucked on reserve, it wasn't quite as bad when I was a blockholder but bad all the same. I personally would never do it long term. I don't begrudge commuters but I do feel sorry for them. I always felt that alot of real life was missed while I was trying to make my way between two half-lives. There is alot to be said for finishing work, getting in your car, and going home.
No airline has been as mobile as far as it's hubs and focus cities as US Airways- new mgmt every couple of years shifts focus from here to there, one side of the country to the other, opening and closing entire hubs and thier crew bases... unlike the other carriers that pretty much have thier traditional fortresses. Finally, no airline has been butchered like US Airways- essentially cut in half, massively outsourced, resulting in a senior workforce with junior lots in life, displaced from thier bases or put on reserve late into thier career. If the new mgmt understands this, they sure don't have any 'think out of the box' solutions such as new bases, statelite bases, major buyouts, whatever. They are going with the classic hopefully they'll quit stance.