I have cruised over 100 times and have about 58 on Carnival going back to 1977. My last 12 cruises have been on Carnival on various ships in the Carnival brand fleet.
With Carnival carrying over 3.3 million passengers a year and with it being the most popular cruise line in the industry, they didn't get that way by ignoring fainting passengers.
The poster was obviously panicked at the time her mother fainted. She DID get assistance from "a man" whom she did not identify. There are no medical people standing around in the public areas just waiting for something to happen. When a passenger is in medical distress, aid is offered immediately by whomever arrives first...meanwhile, a call goes to the physician quarters which is usually on a lower deck. It takes time for a medic to arrive.
Her mother obviously recovered but poster thought she needed a wheelchair. Again, wheelchairs aren't placed in corners around the ship; it takes time to get one to where the passenger is located.
It is not unusual for older people standing in the hot air to feel faint or to faint (I AM an older people, by the way - almost 70). There are other times when a passenger has been drinking him or herself senseless for a couple of hours before the drill and will drop like a rock once forced to stand upright for 20 minutes.
She said her cruise was awful and offered "Buyer Beware" at the end of the tale. She didn't elaborate on the awfulness but most cruisers are aware that Carnival has a vacation guarantee. If you are unhappy with your cruise experience before the ship reaches it's first international port, you can report it, be assisted off the ship at the next port and receive a full refund. She could have fled the "awfulness" if she wanted to.
To end, I feel that there should be a forum for people to spout off if they are unhappy with a service. However, I also think that one should look around, recheck the situation and calmly and objectively tell the story. I have NEVER had a bad or even slightly bad experience on Carnival - after 58 cruises. Have there been hairly situations? Sure. Ships personnel have always come through.
No cruise line is going to totally ignore a passenger, out cold, on the floor. Sorry, I don't buy the story.
Oh, and - by the way, ALL ships crew that works in passenger areas and comes in contact with them,are required to speak and understand English.