Update on 12 feb 2018: CrowdIn Support reenabled.
See article
«As a contributor you can start contributing again on CrowdIn as long as you are enabled as a proofreader on the project. In order to get enabled as a proofreader, you should get in touch with the CrowdIn project owner or managers.»
https://steemit.com/utopian-io/@utopian-io/utopian-rules-update-9-crowdin-support-and-moderation-quiz-quality-over-quantity

And updated Translations Rules: https://utopian.io/rules