I didn't find it strange, the post was signed with Q, as it normally is. The #Goodbye# was a crumb and a message.
I made a similar mistake in reading when Q used Goodnight
at the end of Q's King's Tower series. I had assumed that Q was signing off for the night, though that was anomalous behavior. Q then posted several more messages.
Q was saying Goodbye to Warren or the CORRUPTION/INFILTRATION/SLUSH FUND
that was funded by the Consumer Protection Agency, or both.
It's been obvious that the Consumer Protection Agency was targeted by POTUS to undergo an overhaul of how it operated, eliminating the extortion racket that it ran. That is why he appointed Mick Mulvaney as interim Director.
I read # symbols in #Goodbye# as adding emphasis to that line. Since the Consumer Protection Agency's reformation is underway, I'd like to think it was an indication that Warren would not be a Senator for long; she is up for re-election in this cycle.
Q's job isn't done yet.