Contrary to prior mental-health studies using online data, which primarily explored English-language dedicated support forums in single-country settings, we investigate emph{high-visibility} mental-health-related discourse on Reddit spanning 7 Nordic and Baltic countries (Norway, Sweden, Denmark, Finland, Iceland, Estonia, Lithuania), 3 regional communities, and 8 languages collected over 12 months - specifically, we study multilingual general-community subreddits and extend the analysis to community reply behavior. A two-stage approach (multilingual keyword lexicon followed by GPT-4o-mini annotation) yields 820 high-confidence disclosures. Counterintuitively, we note that winter and summer rates differ little, and daylight models remain non-significant. Cross-country differences are statistically detectable but substantively tiny and are entangled with cross-lingual confirmation bias. Our community response analysis reveals that stress sharing attracts supportive responses, but suicidal-ideation disclosures received the most fragile response mix (36.5% of responses were harmful/dismissive).

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