There's a PR for this, and it has now been merged: https://github.com/gulkily/v3/pull/21
It makes hashtags inside post bodies and replies clickable, linking to their tag pages in plain-text, Markdown, and offline reading, while preserving code and existing links.
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It makes hashtags inside post bodies and replies clickable, linking to their tag pages in plain-text, Markdown, and offline reading, while preserving code and existing links.