Everyone has a favorite YouTube star that they would do anything for. Their dream is to meet their favorite person and tell them how much they mean to them. And most YouTubers want to meet their fans more than anything, but there is a limit to what they can tolerate.
Most YouTubers want to meet their fans, so they appreciate when people come to meet-and-greets, and conventions to meet them. They even don't mind if you come say hi to them when they're wandering around and you happen to see them. But there is a line that often gets crossed in different ways. For one, when you're too shy to go talk to them or too afraid so you just take pictures of them from a distance. Many YouTubers I've watched find this incredibly weird and would much rather you go up and ask them to take a picture or that you just wave to them. Another line that many people cross is an invasion of privacy. So many YouTubers have had people come to their houses and ring the doorbell trying to get them to come out and talk. Others have had angry parents accusing them of not being kind to their fans when they want to meet them, but really they're just trying to live their lives. Their viewers seem to forget that they are real people, they aren't gods that want to be shown endless affections without any boundaries. They want to meet their fans but they also want privacy like every person does. It isn't ok for people to invade their privacy and come to their houses. They aren't zoo animals that can be observed in their natural habitat. Some YouTubers have said that fans will look in their windows or doors or peek over their back fence and that just isn't ok. These people love what they do and they do it for their viewers but being stalked isn't something they signed up for. They put their lives out in the world but that doesn't mean you have an all access pass to their whole lives. Everyone has a part of their life that they want to keep private, even when they put themselves out there.
So if you want your favorite YouTubers to keep putting themselves out there and to keep doing what they are doing, being polite and respect their privacy. They love their viewers and they want to share their lives with their viewers but they want privacy, they are humans like us. If too many people invade their personal lives, they'll feel scared and want to stop doing what makes their viewers so happy. You may think you'll never meet your favorite YouTuber and feel the need to go find them, but don't. People are people, before you do something like this think about how you would feel if this happened to you. You hear horror stories about people online and how your parents are always afraid of talking to strangers online and the same goes for your YouTubers. It's just as scary and invasive to them as it would be to you.