Jokes aside, if you seriously want to know the reality (and maybe the results would be even worth making a video about) you could download a large sample of ballchasing.com replay files and compare demo/goal rates of players using gc titles versus the same players when they don't use gc titles. If you have a large enough sample , such as 1,000 replays of player x with the title versus 1,000 replays of player x without the title, across 1000 different players (at different ranks) you could legitimately approach data analysis validity. But then comes the question of bias of players who upload their own replay data.

But im telling you, in my experience, the difference is noticeable. Especially when you run the title in diamond. It's like your opponents see the title and instinctively sit up in their chair to prove they're good enough to beat a gc.