https://youtu.be/UQwfOrG0zYQWhile she loves her gachikoi, she's neither the Holo who loves them the most, nor the one who egosa's the most. Nor does she have the best memory for names and faces.
Face it.
There is actually a massive, massive chance that your oshi knows who you are if you actively engage.
She knows your username. Your face. Your place of work. Your address. Your hobbies, fears, weaknesses. Your love for her. Your deepest darkest confessions through SC and Marshmallos. In many ways she is likely more connected to you than casual friends.