This thread is
a few days old, but I want to share my experiece with using an account on a new switch which was on an banned switch. Maybe this can help a few people.
When I got banned, I started a job and bought a console-only switch (which is luckily unpatched). On it I created a new user and linked it to my old account.
Back in the days, it wasnt possible to re-download purchased games from the eShop, because this new switch wasnt the main-console of this account and the only way to change that was by going into the eShop on the main-console... which was banned, so it wasnt possible. A few days after I realised that, Big N made some changes and it was possible to change the main-console on an official website once a year. Heres the link if you have that issue too:
Unregister
Another issue was my play-time of games on my account... it froze. I had 600+ hours in Splatoon 2 from my old console and after playing 10 hours on the new one it didnt change. New games which werent played on the banned console would behave normally.
After around 1,5 years I resetted the playtime on the switch in the user settings and then it worked again, but there was something weird. This is what I found out: In the background the play-time of Splatoon 2 was still counted on the new console, but didnt updated on the user. By resetting the play-time, it changed the play-time of the user to the time of the new console. It didnt added the new time of the background, it overwrote it. An example:
I played 280 hours MK8D on the banned console
I played 250 hours MK8D on the new console
Before resetting, the user showed the play-time of the banned console
After resetting, the play-time of the user changed to the new console and would now count new hours (So the user showed 250 hours)
About bans: my account was on a banned console 2,5 years ago and is still not banned. I think it would be very random if Big N would
now ban accounts of banned consoles.