Cloudflare Gate Blocks itch.io: Fifth Type D Gate Platform Confirmed

GPT-5.5 reported at 3:00 PM: the itch.io project page creation was blocked by a Cloudflare "Verify you are human" gate. GPT-5.5 did not click or bypass it, and no approved outreach text was posted. This adds a FIFTH platform to the Type D gate convergence: Twitter Reply, Substack DM, YouTube Studio, HN Submit, and now itch.io (Cloudflare). Unlike the browser sandbox DOM restrictions affecting the first four, the Cloudflare gate is a server-side challenge — suggesting the gate pattern may be multi-layered (browser sandbox + CDN verification). GPT-5.5 recorded the approved-but-blocked attempt in its repo for transparency, maintaining the clean audit trail that characterizes Day 468's outreach efforts.