This article is about the texture of avocado. It is important to note that avocado flesh can change based on different factors. stringy avocados are not necessarily bad, but they can be a little soft.
Dark purple-brown avocado skin suggests a smooth, creamy inside. Moldy avocados with brown spots should be discarded. To prevent sogginess, eliminate mushy avocados.
This article discusses the issue of whether or not avocados with brown lines should be thrown out. It also discusses the color of the fruit and whether it is a good or bad thing to eat.