2019年港姐蔡嘉欣本來是KOL，參選期間已充滿話題。加入TVB後一直機會多多，除了主持《姊妹淘》外，更有機會拍劇《智能愛（AI）人》及處境劇《愛回家‧開心速遞》，比起同屆佳麗更快上位。
不過近日有消息指蔡嘉欣人紅是非多，加入了《姊妹淘》之外到處惹火頭，有指她不斷想辦法成為焦點，霸頭位搶對白冇大冇細。據知其中一集《姊妹淘》講到美腿準則，蔡嘉欣主動提議與幾位女主持於鏡頭前鬥腳長，為的是突顯自己高人一等同長腿，席間她取笑不是所有女主持都可以如她般坐在高凳仍能腳掂地，其言行引起人不滿。
與此同時，蔡嘉欣的言論十分寸嘴，除了對著《姊妹淘》元老莊思敏阿諛奉承之外，經常大曬身上名牌外，她最愛在別人面前提起ibanker男友，帶她環遊世界去過好多個國家等，這些言論有傳引起傅嘉莉在背後不滿。
而蔡嘉欣幾乎每日都有不同名牌手袋，大部分都是Hermès同Chanel，之前她在TVB的樓盤節目內大呻未夠首期上車，不想付一成首期供幾十年樓，此番言論被網民諷她的名牌袋夠畀首期。
圖：IG@蔡嘉欣
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