We will never cruise with Princess again !!!.

All my cruises have been good , I have never had a bad cruise

Agreed. There are some people who just shouldn't cruise.  It isn't the only answer and maybe the OP is one of those people.  We've had a few cruises where it seemed everything went wrong and fortunately we knew that was not the norm.  We've also had those cruises where everything seemed touched with magic and while that is also not the norm, we like to make that the bar to reach each time.

I have no problem with complaints.  If they’re valid.  If part of a cruise is disappointing, fine , tell us about it.  We have had one really bad experience. But even that one had some good points. 

So sad, that they had such a miserable cruise.  Sure hope they didn't post here in hopes of like-minded complainers. They'll have to go somewhere else because we do not want them (complainers) on this forum!

Some people just need an audience.

I've wondered the same. Why it is one party will have such a disastrous cruise then go out of their way to warn others not to book said ship or line or both, while dozens of others on the same voyage had such a great time?

No question, some are just trolls, perhaps they have their own favorite line and just want to put down the brand X, sort of like rooting for a football team and posting how bad the others are. Always beware when they use language like "the food in the buffet was worse than a hospital cafeteria" or "I wouldn't feed their food to my dog". But then, once in a while one of these reviewers will stick with it and respond to questions, they might even appear to have a grain of intellect in their discourse. 

I just ran across one of these puzzlers prior to our last cruise, which we boarded in mid-January for an over three weeker. This party had been on the same ship in August and wrote a scathing review dealing with almost every aspect of his cruise. I thought this rather strange since six months prior to his cruise we had been on the same ship for over a month and experienced nothing like all the negatives he espoused. So I waited, but he had me concerned. After six days we reached our first port, which was Honolulu, then I posted my findings on his review, all good things, an absolute opposite of his tormented review.

He did provide a cordial response. Was glad we were having a good cruise and sorry he made me nervous. But he did suggest one thing that still makes me wonder as to his motivations. I happened to mention that since we didn't leave Honolulu until late in the evening we had scheduled an "Ultimate Balcony Dinner". He recommended that we cancel that and instead have dinner at one of the fine eateries in Waikiki, some of which he recommended. Well, we have been going to Hawaii for almost 50 years, sometimes twice a winter, so we know that, have eaten out a lot over there. Turned out the steak and lobster meal was exquisite and the Princess balcony service super. He just couldn't resist attempting to convince us to forgo a Princess meal on our balcony, could he??   

How is it so many trolls come over here, go through all the trouble of setting up a profile, just to whine about a bad cruise ?    They make their one post and are never heard from again.