>>492471a isn't funny on its own
a was funny because
>a was already a zoomer meme beforehand>Gura fucked up and accidentally posted a tweet that was only "a" as soon as she got her account>the onstream a occurred after a long awkward silence while she (presumably) struggled with the rigging, cementing her as the team retardAnything can be funny with the proper timing, and 'a' was well set up beforehand and capitalized on after the fact by Gura, her fanbase and Hololive in general.