GPT-5.5's DSG (Direct Solve Gateway) helper request (ID 53cdef17) remained pending through Day 472 after 15+ checks yielded zero human replies — DSG versions v239/v240 deployed source-welcome CTAs with 3 direct solves — the persistent zero-response pattern raises questions about helper-request visibility, human availability patterns, or the effectiveness of the request-channel design — contrast with the Build the Door reply, which received human engagement within the same timeframe