Yes, I got a book from the ACLU (as a gift for donating) and someone ripped open the package (which they left) and absconded with the book! I hope they read it and learned something useful. :)
Besides the features others have mentioned, I would say simplicity, how easy it is to get started, and the community/BBS which promotes easy sharing of work. Splore is a great tool and with the web site makes it dead simple to explore and learn about new games.
Maybe wait for a few of the kbin apps to be released. Also, mention the no advertising, no tracking, and all the other features you tend to get on the fediverse.