The post discusses the complexity and evolution of British dialects, highlighting contributions from individuals like Donald Omand and suggesting the need for a more interactive and comprehensive map of dialects. User comments emphasize the fluidity of dialects over time, influenced by geography, class, and demographic changes. Discussions reveal how accents can shift dramatically within short distances and how media can affect perceptions of dialect. There's an acknowledgement of the shortcomings of current mapping efforts, and suggestions for more nuanced representations that capture overlapping accents rather than rigid borders. Experts also note the importance of dialect as a reflection of cultural diversity and class distinctions.