{"success":true,"data":{"id":"subject-excessive-emoji","label":"Subject studded with 3+ emoji — marketing / promo spam fingerprint","description":"The subject line contains 3+ emoji characters. Marketing spam and promotional blasts stud subjects with emoji (`🎉🎁🔥 Flash sale 💰`) to grab attention in the inbox list preview. Legitimate transactional and personal senders use at most 1-2 emoji per subject — one for brand identity or a seasonal icon, occasionally a second as punctuation. Three or more crosses into the pattern-matched shrill-marketing territory. Detection uses the Unicode `\\p{Extended_Pictographic}` class with the `u` flag, which correctly covers smileys, pictographs, dingbats, and symbols across all emoji blocks. CJK characters, Cyrillic, Arabic, and every other non-emoji script are outside this class and do not false-fire. Compound ZWJ emoji (family emoji, 👨‍💻, etc.) count each internal pictograph as a match, which is correct because they visually crowd the subject the same way plain emoji do.","tier":"warning","category":"subject","isThin":false}}