Those are good ideas! Here's another possibility.
I've heard folks call it "no doomscrolling" so maybe #NoDoom?
Edit: On the other hand, #CutenessTherapy could be something to use long term.
In an old Calvin and Hobbes cartoon it was called Fuzz Therapy
@ahimsa_pdx @blogdiva I like #FuzzTherapy except it leaves out cute birds and hippos and such. Apparently #CutenessTherapy is actually a thing so I'm gonna use that 😁