Defuddle appears to be a new tool designed for converting HTML to Markdown, aiming to provide an alternative to the existing Readability service. Users in the comments reflect on their experience with similar tools and express varying degrees of satisfaction. Notably, one user has transitioned from a personal implementation of the Readability algorithm to using well-maintained Python alternatives, indicating a preference for stable, reliable solutions. There are concerns about usability in the Defuddle playground, particularly with the URL submission function which seems to be problematic for some iOS users. This feedback suggests that while the tool has potential, there may be some teething issues that need addressing for better user experience. Overall, the interest in such tools underscores a continued demand for effective content parsing solutions in the tech landscape.