Well! An interesting thread and I learned something: I need to be more assertive.
I've seen people be real jerks to CMs. I've even seen CMs cuss at guests. I once watched a bus driver have a complete mental break when the bus we were on broke down, because she was upset about the poor maintenance on the vehicle. Most of the time I manage to just ignore these occurences, along with other people's unmonitored screaming children, and stay in my personal "happy place", because hey, I'm on vacation.
We have been going to DVC resorts for more than 10 years, first with family who owned and then as owners ourselves. In the 90s it was better than it is now. In fact after two difficult trips in recent years, combined with the super-cheap packages Disney sells these days ($90pp a night for a moderate room,
DDP and PH tickets is so cheap!) that are overcrowding and trashing the restaurants, have had us wondering if we should get out.
Instead I think I'll just get a little noisy.
We, too, have had small problems with CMs, and lost reservations and such. (Thankfully I *always* bring my official confirmation letter to checkin!). And my husband has been really bothered by the degredation in the dining experience at WDW in recent years. We have not gotten valet or concierge service in about four years, because they generally cannot be bothered; we usually stay at BCV and there's nothing to do but drive the car round to the building and make the trips inside with our gear. The front desk is not interested much in BCV guests and the bell staff don't help. Just part of being DVC instead of a hotel guest, we decided.
But last year took the cake, and is what made us really think of leaving. We had 8 nights in a studio at BCV. When we arrived, upon inspecting the room I noticed there were deep gouge marks in the porcelain of the toilet. But we immediately left to make a dinner reservation we were nearly late for. Upon returning to the room late that night, we discovered the toilet did not flush.
Called maintenance. Stayed awake til 12:30am til they came and plunged the toilet. They claimed it worked fine now, and sent maid service to mop and clean the bathroom. I got to bed when the maid left at 2:30am.
Next morning toilet sort of flushed, we got dressed and had our day in the parks. Got home late that night - and toilet was not working again. Husband/kids went down to the lobby to potty and I called maintenance. 90 minutes later (nearly midnight), they came and snaked the toilet (now I knew where the mysterious gouges in the toilet had come from - clearly this was not a new problem). Once again I waited for maid service to come mop the sewage water off the bathroom floor before I could go to sleep, sometime after 2am.
Third night. Lather, rinse repeat. This time I made my husband stay awake and wait for maintenance, while I went downstairs to the front desk to ask about a room change. I was told there were no other rooms, even in the hotel, and there was nothing they could do. So back to the room I went, resigned to just deal with the remaining 5 days of vacation like this. We spent the rest of the week using the restroom in the BVC building lobby.
I have no doubt that in spite of my repeated complaints that room was let out to someone the day we left, who endured the same problems we did.
Anyway. For the amount we have paid for these points, and the amount we pay in dues, never again. I am not a temperamental person but next time, if there is a next time for something this bad at DVC, I will put up a stink - they'll put me at the GF if they have nothing else!

One should not have to use toilets in a public restroom when one's paying for a room.
So... I will not martyr myself on the altar of "no sleep" next time - a manager will be found to get me an adequate place to sleep. And pee.