Deprecated message groups

I mean Template:Identical (e.g. [1]). Translation memory is only given in selected languages (Special:Preferences#mw-prefsection-editing) and depends on the message group. I agree iNaturalist messages should be kept and may be useful for further reference so I also translate them. On the other hand, I'm glad to note iNaturalist is not included in Special:LanguageStats anymore as I have already translated it once (on Crowdin). As to Wikidocumentaries, I would be glad to translate the messages but as far as the status remains unclear, I'm leaving this for later when more active projects get translated.