Meant to report on this earlier but got sidetracked by questions.
Many of you may have noticed or seen this scattered throughout the forum, but it seems that people are receiving game-specific bans meaning they are being banned from playing a single game online. Full details have been added to the OP under "Different Types of Switch Bans". To keep it short, a temporary ban applied to Splatoon players for repeatedly crouching is now being used on hackers, notably Splatoon and Smash, for simply touching their save files (not necessarily editing them) as a permanent ban.
The majority of users get console cert ban days later when they get game cert ban I think?