He didn't post the fix on the public forums. He knew that if he did, the Delta devs would patch it in hours. Instead, he sent a single, encrypted message to the lead dev of Delta with a snippet of his code and a note: "Found a hole in your 'Legacy Mode' fallback. You might want to close that before someone less friendly finds it."
: A "bypass" is a script or third-party tool that skips these ads to provide the key instantly. The Evolution of the "Fix" delta key bypass fix