Please refer to this help guide
https://help.twitch.tv/s/article/how-to-handle-view-follow-bots
Blocking these accounts does absolutely nothing to help you.
As the scumbags are generating accounts as quickly as Twitch TOS’es them
Blocking them will do nothing to help you.
And it’s (theoretically) a misuse (not in terms of TOS but in terms of the intent of the endpoint) of the block endpoint. Since they are not sending chat messages for you to block and not see. (But mods will see messages anyway in order to moderate them, so again, doing nothing to help you)
And their whole intent is for you to waste your time and cause extra API requests to Twitch to block them.
So you are doing nothing to help yourself and causing extra load on Twitch’s systems.