i mean that is basically self-care
For anybody ready to totally go off on somebody else for spelling it Cass, I just wanna say that the first exposure I had to the name was closed captioning (because of my hearing deficit) and it was spelled Cass.
There was a HUGE fight on LiveJournal and fandom forums back in the day because half of the people read the scripts/IMDB info/closed captioning seeing Cass and the other half decided it was Cas, and in the fallout there were a lot of people that left fandom over it because it got THAT bad.
I do prefer Cas, but if I read a fic or post with Cass in it, it doesn’t bother me because I assume that’s all the person has known or maybe they just prefer it.
I also headcanon Dean and Sam teasing each other and Cas about this. Leaving notes for Cas where one of them writes Cas and the other adds an S in different handwriting and another color ink just because, then the first one scratches it out and makes a sad face or whatever. Cas thinks the whole thing is adorable and slightly confusing 😀