It wouldn't... I mean, look at spam/scam comments... Those mostly go unnoticed... At least by YouTube... HOWEVER. There is a solution. (No, this isn't sponsored, even though it may sound that way.) There's an app called "YT Spammer Purge" made by ThioJoe, which does what YouTube itself can't. Download it with https://github.com/thiojoe/yt-spammer-purge and try it today!