Facebook is just about omnipresent among today’s youth, who use the site to share their talents and idea, and communicate with friends.

But Facebook has a dark side too. For Pey Pey Ly, 20, who uses the social networking site primarily to share self-produced videos, comments can sometimes be crippling.

“I make videos in which I cover songs and act in order to let all my friends - both local and abroad - see my abilities. I want to be popular, well known, and interesting,” she said. “But sometimes, I post some video . . . and some people don’t like what I did, so they write a comment to blame me by using bad names and harassing words on my post.”

According to Ly, the comments occasionally went beyond name-calling. “They also manipulated my photos and reposted with bad words to make me lose my credit and spoil my honour.”

While Ly has gained some five thousand friends through posting her videos and has received numerous compliments, she said the negative comments still saddened her, as it was clear that for some viewers, their intended meaning had been lost.

But Ly has not been swayed. She continues to express herself through song and dance. “If you don’t like what I am doing, please don’t click ‘like’ or comment on my post. You also can remove or block me from your friend list. I am OK with it,” she said.

“I would like to thank everyone who supports and encourages me every time, and please continue listening and watching. I will still keep producing something new to entertain you guys.”