>>79246178technically everyone on the internet who doesn't use their real name as their alias should be doing opsec but paranoia is the death cry of society and effective communication (as following Mami's advice would actually make you ineligible to get a comm from him based on his response) but it's not easy to make a business account in most countries and artists and clients alike have had the basic courtesy to not leak information for years before vtubing was even a thing and anyone who does is quickly found out and unpersoned immediately (like Mami)
just dont be an asshole, learn what the red flags look like and stay safe