Regarding, "not enough", I'm currently losing money on Legible News, so if I increased the amount, I'd lose even more money. For now I consider a 10% donation generous given the current unit economics. I may raise prices to offset these loses, but I'll grandfather in people who subscribe today.
If Legible News reaches a large enough scale I'll consider switching from the current donation model to a Wikimedia enterprise subscription (https://enterprise.wikimedia.com/pricing/) or hiring my own editorial staff to put together the days headlines.
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Edit: Oops, there's a bug on the news articles that are not displaying the license. If you want to see what this should look like, check out https://legiblenews.com/articles/Mekelle and scroll to the bottom and click on "License".
Fixing this now for news articles.
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Update: Licenses are now working for news pages. You can see today's at https://legiblenews.com/june-27-2022/license. This broke navigation at the bottom, which I'm now fixing.