Hello WW23, I wasn't here when you arrived, so belated welcome, and i hope you're having a nice quiet read in one of the many cozy corners in the Bluestocking - it's magic that way, it looks square-ish but there are as many corners as lovers of cozy corners
The gerbils have a noble history - I believe their Creation Myth is somebody using the phrase 'Foucault-addled grievance gerbils' to describe the easily-offended. This was deemed perfect for a t-shirt, and somehow the gerbils decided to take ownership of the gerbil-related IP and set up their own t-shirt factory....
all of this was aided and abetted by AI-generated images of the talented little rodents, and one thing led to another and here you are, being served an excellent coffee by a gerbil.
You see, it's all very sensible and not baffling at all😁
In short, a funny reference to 'grievance gerbils' took off, and we've been having fun with them ever since; you have to admit, they are very very cute, aren't they?