Myself I have donated already a little bit.
I know that a lot of DeviantArt artists here have used this program to create something with it. I also know non-DA users using the SP-Studio.
If that's the case and you can spare a dollar/an euro or even more, why not supporting her?
If you want to, following one of the links at the top for the options of support.
Myself I'm not a frequent or very active user of the site but I still know what it's about and how it works. And I especially know the artist behind that and her efforts put into the work as well as the passion behind it. That's why I could not just sit there and do nothing. If just one of the people reading this would donate a bit, that would be awesome.
In the name of my friend I already give this person or these people a big Thank You for helping this popular site survive.