Directions: Write an English composition in 120-150 words according to the instructions given below in Chinese.

网络时代，人们常常不辨别真假就在社交媒体上疯狂点赞 (give the thumbs-up) 或转发 (forward)，这种行为有实际意义吗？请就此现象谈谈你的看法，并结合生活中的实例加以说明。