Dangling Modifiers

Can you tell why English teachers criticize the following sentences for their dangling modifiers?

1. Calling themselves a "creative hub," each photo page displays a variety of HTML codes needed to post it elsewhere.

2. Once used only in space, consumers can now install photo voltaic cells to generate their own electricity.

3. Unlike Demetrios Island, goats have been Stratos’s only source of income.

4. Using a phenomenological approach, the participants completed an audiotaped, unstructured, nondirective interview.

When a sentence begins with a dangling modifier, and no comma follows the modifier, that sentence can baffle readers:

5. When searching through the console log node TZ9a6 was found to be missing.