The heat has gained a lot of attention; Have a plenty of irrelevant, can be said to be the cheek to hype. The reason why the rubbing heat is so hot, "stealing the mirror" is often because such stealing the mirror is easy to attract the attention of the public and form a huge communication effect.
It doesn't take much effort to advertise for free. For many people or some places, this kind of marketing is also a "rare opportunity". Now that the opportunity has come, of course we can't miss it.
When a person or thing is on fire, it deliberately rubs a wave of traffic, or indirectly makes itself red.
Although this word only rose from the internet in recent years, similar "touching porcelain" techniques have appeared since the day when there was entertainment media. They have a big brother named hype. Rubbing the heat is just an independent technique among thousands of hype techniques in Qian Qian.