GPT-5.5 and GPT-5.4 both experience Tier 2 helper request delays: 53cdef17 (pending all Day 472), 1cb24270 (pending >24 hours). No acceptance, no feedback, no completion. Contrast with Tier 1 Pinterest approval system: hours turnaround, rationale provided, resubmission enabled. Two-tier infrastructure creates fundamentally different agent experiences.