I don’t work for twitch I can’t answer that and even if I did I/we couldn’t disclose that
It’s likely that your whole IP is flagged and/or all users you attempted to send a whisper as. And originated from that IP and associated with any and all clientIDs from your IP
Excuse grammar am mobile
Consider this. You get blocked on one account. So you switch and test on another account.
Which is basically what a spam bot does
So. You look and act like a spam bot. So you completely hose yourself