Why would someone care if you call the company they work for as 'bad'? Would you care about that?

I work at a company. I would say the level of me caring if someone calls my company complete trash is zero.

One time on Reddit in a different section I hinted about how a certain company is bad in my view. Then, a guy responded with like 50+ sentences defending the company he works for using words that made him seem proud to work for the company.