Excuse me, my friends and I (but mostly I) use xD and variations extensively.
I actually stopped using it for a long time before unashamedly returning to it. It's just so easy compared to other shows of levity, AND it's scalable. xD is some levity. XDDDDDD is MORE levity. Like with :))))), except that's some psychotic boomer Russian shit. x3 adds a cuteness squee element to it. xP is more playful.