Personal anecdotal is not a counter argument and your examples are examples of when Nintendo (and others) had far less security measures in place. Nintendo has been banning modified Switches and at a far higher rate than their previous systems. This is due to the newer and better security measures they have in place for the Switch. Just because your system hasn't been banned, doesn't mean that modifications don't come with an increased risk of getting banned. Additionally, your system could easily be banned at a later date.Why do ppl say that mod consoles always get banned? My wii never got banned. My 3ds never got banned. My wiiu never got banned. My ps2 I don't know cause don't play online with this one. My switch is still not banned only using XCI.
EDIT: Dreamcast also. Although I'm only counting consoles that connected online, I don't think ps2 and Dreamcast count cause it was not a banning era