The hacking and/or hijacking of accounts for malicious purposes has been a known and happened issue on Twitch and is apparently detrimental for the safety of all users, either with accounts hacked or affected by subsequent malicious activities such as fraud or hate spam.
So, it would be good to have more active methods for users to report accounts that start to have suspicious activities, other than passively remind everyone to protect their own accounts.

Recently on a channel where I work as a moderator, there was a user who had been talking normally in the chat for several months suddenly dropped a suspicious message (asking people to find a person due to property dispute). Another moderator messaged this person to investigate but ended up getting very confusing replies (the replies said this was a joke, but they didn't know how that happened, and they unfollowed the channel). With the drastic and confusing change of behavior, we suspect this person's account might be hacked, and the confusing replies might not be written by the original account user either. But currently when reporting an account, there is no adequate option for such suspicion.

I believe if the users are given the ability to report a possibly hacked account, Twitch can have a lot more people looking out for account hacking and thus mitigate the hazards it causes.