It is a good idea to have it in Spanish, really making posts with 2 languages is something unprofessional and surely affects the SEO, another thing that should be mentioned is those users who want to upload content to 3speak and really do not know how to speak English perfectly. So it is a good idea to have this in both languages, even in other languages to position ourselves in our native language in search engines. As you said yourselves:
I have no idea how the search engines feel about this but Spanish based content is vital for Hive's future.
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