MuseScore.com help
Just a suggestion. Why not add a help with MuseScore.com forum to each of the languages so users who end up here rather than on the email will have a place to feel welcomed to post requests for help. I realize Thomas will end up answering the majority in the long run, but there are situations where other users can help.
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or alternatively, have that forum link here, but make it link through to https://musescore.com/groups/improving-musescore-com