Naive, or deliberately trolling
"If you've paid for software and it doesn't work, then you shout down the phone till someone fixes it."
Or until you shout yourself hoarse, maybe. The vast majority of *all* software sucks. Whether open source or proprietary. There are big wins with the open stuff, though, including:
1. typically you've not just paid a fortune and locked yourself in to it;
2. even if *you* can't fix the code yourself, it's possible to find somebody else who *can* if the original vendor can't / won't / goes bust
But as you're yet another person who seems to claim / believe that open source == free in cost and therefore worthless, I doubt you'll even understand the argument here.