It's really unhealthy. People build up these false relationships with celebrities and twitch/youtube streamers through years of consuming their content. It's an easy trap to fall into and can happen to anyone. You love the content so much that you begin to consume it regularly, you then learn and understand their routines, sense of humour, personal stories etc. In the end, you think you know them and you think they know you because you feel they relate to on so many levels. It's all very scary and indicative of the times we live in.
I've been seeing clips of ishowspeed - a youtube streamer - trending on X over the last few days as he has been streaming in China. The behaviour from fans has been wild.