Well you could potentially verify real users and compile a list.. One part could be done pretty effectively through direct browsing and nomination by a few select people of trust.
The rest via other means.
I know about a 100 real people of the top of my head.
Would this list provide value? Maybe... For marketers etc to know what the size of the community is and what reach they can expect to have.
Could add comparative value vs blockchains like tron that fake id guess 90% of their user numbers.