Many of them are like this. Basically, 90% of the bosses are small businesses, and many of them are hiring people and will not reply to you. And to tell the truth, there is basically no good job on Boss, with poor geographical location and inconvenient transportation. Many of them are outsourced to small enterprises, and the projects that big enterprises can't do well are thrown to small enterprises, which makes the work difficult and the wages are poor.
Take me personally for example. I have been looking for artists and clips on Boss for months. They are all small companies with 10 people. The salary is very low and demanding, and I work overtime from time to time. In short, this pit is a match. Later, I really found that the boss was basically doing this kind of work.