Because it’s an outlet for my non-grumpy, cheery personality.
During the day I can be too serious, mostly because I don’t feel safe to express myself fully in public. So I use Lemmy to have some fun, leave a silly reply if I feel like it and post some nice images.
I haven’t done this in years. Before, I spend most of the time just lurking around. It feels good to just let go and be myself with strangers :)