If your going online you'd have to be as clean as possible. Dont install anything on the OFW side, use emunand. Dont use AutoRCM. Use a clean SD card when going back online. And honestly your probably still going to get banned. No one truely knows what detection methods they use. I've heard just having clear logs can get you banned within minutes so its really hard to say. But I've never bought a nintendo system and thought "i bet the online play for this rocks" The wii, wii U and 3DS were all horrible online. Since my switch came out of the box its never even seen a wifi connection. I'm surprised people on these forums would give two sh*ts about nintendo online, when people start doing this they should just assume they will get banned no matter what.