Yes,we do ，The youth usually use these number words usually （we say they are number secret code ”数字密码“）,but the old people probably cannot understand . We have song for it《爱情密码》，the singer 范晓萱。 Example， 520 我爱你 1314 一生一世 88 拜拜 886 拜拜了 940194 告诉你一件事 065376 你惹我生气了 7708801314520 亲亲你抱抱你一生一世我爱你 13340 一巴掌扇死你 There are more new words be produced by the youth ,O(∩_∩)O~

youths and teenagers often use numbers in place of words

yes, quite often but not very often

first time to know 5366=我想聊聊，哈哈。We do use numbers in texting, such as 88=拜拜=bye, 94=就是=that's it... But as for me, since a few characters can be represented by numbers, I don't use them often.

haha. Thanks guys!