Think of tags as like a book index where you find words and which pages they are on, the same principle applies here. Although it's taken a stage further so it might not be the word, but the subject, so for example if you're looking for things to do with fractal gradients for example. A tag may bring back posts with gradient files, as well as posts that discuss gradients, or tutorials about them.

How to batch render a full folder of flames?

How do you render a folder of flames that you’ve made?

Using the Batch Renderer in JWildfire

The Batch renderer in Jwildfire is a tool which allows you to select a bunch of fractal flames and render them in batches, great if you’re trying different variations.