Unlike Ayame, people actually have a reason to and the ability to analyze why Gura is the way she is. Same for Stars' success. Most people think Gura's lack of streams aren't the issue, it is the utter lack of communication from management and the talent herself, despite admitting it is bad, themselves. Cover and Gura put themselves in this situation, despite the reasons, they could have easily quelled this issue after the first time it happened. People are not going to stick their heads in the sand if they keep doing the exact same thing.
As for Stars, people here do actually watch them, even if it is not the majority. They just had two talents quit in a very bizarre fashion. That is obviously going to bring discussion to what is, at its core, a gossip forum.