I always am amused at the negativity towards rebreathers, especially those who have zero experience with them.
If you're the type of diver who wants to strap on your gear, jump in the water and dive until you're almost out of air, paying no mind to your gear except when you put it on and take it off, a rebreather is not for you. You are the kind of diver who will likely meet his demise on one. However, if you're the kind of diver who can actually pay attention to what is going on with the gear keeping you alive underwater, if you have a cool head and are not prone to panic, and can follow simple checklists every time you put your gear together and before you jump in the water, a rebreather is possibly for you.
Personally I feel safer and more in control on a rebreather than I do diving OC. For me, the pros outweigh the cons. I don't believe for one second that diving a rebreather properly is paramount to suicide. Improperly diving a rebreather is a different story. It is not something for a vacation diver, for the casual diver who does 10 dives a year.
If you're a careful rebreather diver, you will be rewarded with long, quiet dives, closer interaction with marine life, warm moist breathing air, and more bottom time before hitting mandatory decompression stops.