YouTube needs to implement extreme measures like removing all non-alphanumeric characters from comments to effectively stop spam, then slowly reintroduce flexibility.

“the suggestion I gave them was like look you guys need to stop allowing anything other than official language alpha numeric characters that's it that's it no special characters just block it all usernames message contents all of it figure out your sh and then start to slowly bring it back”

Limiting special characters is a necessary step because many of them are used only for exploiting or fooling users.

“there's a huge amount of characters that are essentially only used for fooling people exactly only used for exploits or abuse like oh this this looks like an eye but it's not an eye it's some other thing or or whatever else like there's there's tons of that stuff so I don't know”