For work of broader interest: have you read/commented https://www.mediawiki.org/wiki/Content_translation and volunteered at https://docs.google.com/forms/d/1yCvPS65eWk9S8uXkksAbDbLsbZQd0ISQKBDFfJnSSo0... and/or told translators to)? Translation on Wikimedia projects is what we'd call a karstic phenomenon: there is so much going on but we know so little about it because it doesn't follow organised patterns.
Nemo