Basically no energy cost (technically not correct but it's really whatever)
Free humidifying during the dry winters
Fairly satisfying thing to do while listening to a podcast
The primary downside is that it's no fun to do it when it rains, neither indoors or outdoors, but as long as you time your laundry well enough, it's all good.
It should be possible to hang your clothes indoors still, I guess. Outdoors as well I've been told, when it's a bit below freezing, but I'll admit that I've never actually tried that.
At home I hang most of the clothes, but we where at a short trip and we had some wet towels and swimgear, so de decided to just do one full laundry with most of our wet and dirty clothes. The first duration before I even started the cycle was that it should be done at about 16:10 it was actually done more than an hour later.
I can't remember to do shit because I don't experience the mental construct of time in the same way as neurotypicals. And even with an alarm, it's still an extra cognitive load that makes me more likely to mess up everything else. If I forget the clothes on the line for a week, they'll degrade in the elements and get mildew from the night dew. Inside is a better place for me to forget my clothes. I have less stuff to remember for less time, an alarm is more help to me, and I don't have to plan for unexpected variables.
I see - remembering to bring the laundry inside is the issue.
While there's nothing wrong with using a dryer - I'm certainly not going to deny you the privilege - perhaps hanging the clothes inside could be a passable workaround for the memory issue? Assuming your indoor environment allows for it, that is.