There's also https://www.ecosia.org/ search that donates ad money generated from searches to tree planting projects. They also provide their monthly finances on their blog.
>Now, with the benefit of today’s technological era, the Library is digitalising their entire collection of manuscripts, which includes over 80 000 codices, mostly from the Middle Ages and the Humanism Period.
It's pretty bad UI design, but pressing the discard button does open a confirmation box that says "Are you sure you want to discard ALL changes? This is IRREVERSIBLE!"
With that kind of a message, it's amazing how he didn't think twice about discarding them. Especially when he didn't have a proper source control before.
I have noticed the same thing. I have a lot of topics selected there, but my front page is still usually full of 'how to succeed in life' posts even though I even mark those as 'don't show more this kind'.