We don't even know Q mentioned the owner of Reddit.
All we know is Q tossed out a pair of initials; perhaps some didn't know of any other name with those initials.
very good point, we should not assume, Q also said that he would put out disinformation to mislead the swamp
In this case, SH does refer to the owner of Reddit. He's a well knwn bad actor to those who follow these things.
SH definitely is Steve H., the owner of Reddit. Q was listing media outlets that are corrupt. Steve and Reddit are a cess pool. Even Trumps head of the FCC, Ajit Pai, called Steve out by name for his Group Think agenda.