In a series of subsequent tweets, Lam explained that the dress represented "extreme barriers marginalised people within (Chinese) culture have had to overcome".
"For it to simply be subject to American consumerism and cater to a white audience, is parallel to colonial ideology," he tweeted.
Keziah posted her prom dress to Twitter, where it faced a storm of criticism and discussion. Photo / Twitter
While his tweets criticising Duam's decision to wear the dress went viral, users were divided on whether it was an issue.
Some agreed, arguing that it constituted cultural appropriation and was inappropriate.
just because it’s okay to a few chinese people doesn’t mean it’s okay to all of us? our traditional dress isn’t meant to be a fashion statement or make you appear more “exotic”. there’s a long history behind the dress and white people are not a part of it.
You look gorgeous and the dress is stunning! What a wonderful world we live in where we can share culture and dress in special design and style from across the world representing the culture of Earth and the art of humanity. ❤️
Keziah addressed the criticism on Twitter, standing by her decision to wear the dress.
She said she meant no disrespect to Chinese culture, saying she was "simply showing appreciation" for it.
"I'm not deleting my post because I've done nothing but show my love for the culture," she wrote. "It's a f**king dress. And it's beautiful."
When someone asked her if she was part-Chinese, she responded: "Nope! It's just a pretty dress I found and it's a vintage dress from a vintage shop!:)"
