Obviously nobody knows what the private repos are. I was talking about public projects. "Gary Wang" is not an uncommon name. For example, here is another one with a Wikipedia page https://en.wikipedia.org/wiki/Gary_Wang
What's interesting is that a lot of the FTX people on the about page (https://about.ftx.com/), including Gary Wang and Dan Friedberg have deleted their LinkedIn accounts, whereas they were available earlier. If they're deleting something so harmless, then who knows what else they are deleting and covering up.