The Hacker News discussion around the claim that "AI is killing B2B SaaS" is mixed. Some agree that AI allows companies to create simpler, custom solutions that replace expensive SaaS tools, especially for "glue" products. However, many argue that the core value of B2B SaaS lies in the "service" aspect, reliability, long-term maintenance, and features beyond basic functionality, making it more resilient than the initial claim suggests, particularly for larger organizations.