You said you went online occasionally to update your games right?Ok now im all confused
How You got banned tho?
I got banned after 1 year using sx os, i didn't went online to play or installed nsp, what i did was to update in my ofw the games, and mess some saves from the games i play with the sx pro like hyrule warriors
That got your console flagged which ultimately lead to it's inevitable ban.
Never connect a hacked console online online because it ups the chance of getting kicked off online services.
My hacked switch got banned 1 week I went online with it thereafter.