I’m not sure where they have their information from, I have 2 very unique, personal accounts on github and i’ve had zero issues.

first is my public “portfolio” page and occasional professional/corporate client connected account, it is very much an account that you would “know” my info, linkedin, keybase, etc identifiers. Then i have a personal one that I use to contribute more anonymously, which I use to further opensource projects that my clients wouldn’t want me contributing to due to conflict of interest. I’m not talking espionage levels, just modified supportive code that i have contributed to an enterprise that doesn’t support opensource initiatives (aka, they’d pay a fine if it ever came public).