@Gamers-are-so-oppressed No, because they aren't directly naming people in ban waves. It's a legality regarding ones rights to privacy, regardless of a ToS breach, or a User agreement breach. Any digitally signed contract, is between you and the service provider. They reserve the rights to cancel that service, at any time, for any reason, just like a stores rights to refuse public service, only in this case, the online services, can and will use their signed agreement to fall back on, as a reason for the termination of service, as it is a legally binding contract. As such, it's legally binding both ways, as corporations, by law, can't publicly slander, or shame any player, banned from it's service, that's why they are vague when talking about offenders whom are in breach of said contract.
Right, no direct naming. So a Steam tag would be fine kind of like the Rainbow 6 example it is their Uplay account? They list the reason in the video as well specifically for boosting. For the BDO example they list the character/in-game family name along with the reasoning "Violating the Operation Policy". I guess what I'm confused on now is what makes Sega different in this scenario? They don't do this type of thing right now no, but if other companies can do this, I don't see why Sega could not aside from the fact they just don't want to.
The harassment I could see happening but that ultimately falls on the player doing the harassing versus the company. They can attempt to sue the company but I could not see that ending well as plenty of other people have tried suing over bans via other games/services PSN/Xbox Live/etc.