Ask HN: Do you contribute tutorials to community writing programs?

Some popular tech companies have programs that invite developers to write tutorials for the company website. The most popular programs are by Digital Ocean and Twilio.

Write for DOnations (https://www.digitalocean.com/community/pages/write-for-digitalocean) by Digital Ocean invites developers to submit proposals for tutorials on a rolling basis and pays $400 (plus donation) per tutorial published on its Community site: https://www.digitalocean.com/community/tutorials

Developer Voices (https://www.twilio.com/en-us/voices) by Twilio invites developers to submit completed drafts for tutorials on a periodical basis and pays $650 per tutorial published on its Developer Blog: https://www.twilio.com/en-us/blog/developers

Other companies have similar programs: https://github.com/malgamves/CommunityWriterPrograms

Have you written for programs like this? If so, what has made it worth your while? If not, what would make it worth your while?