I like the idea of a DSL for scraping but my scrapers do more than extract text. I also download files (+monitor download progress) and intercept images (+ check for partial or failed to load images). So it seems my use case isn't really covered with this.

Thanks for the idea actually! It's difficult to cover every use case in the 0.1.0 release. I'll take this into account. Downloading Files/Images could likely be abstracted into just an HTTP source and the data sources could be merged in some way.