This is a unique product of the development of each era. What we now consider "ancient proverbs" were the "Internet slang" and the most popular language at that time. Proverbs and Internet slang were produced in the context of the times and were used to express people's thoughts. If we study proverbs and sayings carefully, we will find that many proverbs and sayings use a natural phenomenon to express a certain truth.
For example? Heroes have smelly feet and heroes have a lot of farts? This is a natural phenomenon. Even heroes and heroes will have shortcomings. The truth I want to express is that no one is perfect, no matter how good or respected a person is, they will have shortcomings. It is impossible to require a person to have no faults at all.
The reason why there were so many proverbs in ancient times has a lot to do with people's way of expression and speaking. Ancient people always spoke in a formal manner and wrote in classical Chinese. They don't like to speak directly, but like to make detours and let the other party guess their thoughts and intentions. This is considered rude if expressed too directly.
It would be best if some words could be expressed in proverbs, so that they don’t have to be so straightforward. But now we are no longer accustomed to such expressions. What we learn is vernacular, which is easy to understand. If you continue to use these proverbs to express your thoughts, you may be afraid that the other party will not be able to understand what you mean!
Nowadays, the Internet is developing rapidly and everyone has a smartphone. In this era, a number of "Internet terms" will inevitably be produced. Some words require many words to express clearly if expressed normally. However, with these Internet terms, it may be possible to explain it clearly in just a few words.
To give a very simple example: If you feel tired and don’t love, the other person will understand what it means as soon as you hear it, so you don’t have to type a lot of words. There is also the once-sensational "It's hard to tear people apart", which expresses a certain psychological state of young people very well. These Internet terms are all conventional and everyone understands what they mean, so there is no need for further explanation.