Even businesses like Maodou Media, which seem to have "no shortage of demand and traffic," can end up failing.

This can only mean one thing:
The money in the market right now isn't as easy to make as it seems.
Many industries look lively on the surface,
It seems like you can make money just by doing them casually.
But once you're in, you realize that costs, competition, risks, and channels are all eating into the profits.
So don't always think that others' industries are easy.
Surviving in any field is already not easy.