Huh? Sorry but this is pure misinformation, no account will ever be banned for being offline too long.
You will get banned because they deliberately placed a system so you can't be offline for too long, and you deliberately used an outsider's help to bypass this procedure. The set of instructions above isn't the official method to remain offline permanently- it's a hack to bypass an existing loophole, one that can easily be fixed later on. If caught, you're guaranteed to get banned, so many Skyrim gamers will not risk that and simply login online each time they play their game, or login online every several days if they're using the temporary offline mode. Maybe you don't mind having to go online to login to your account as well as update your steam client application every couple of days at least, but for the majority of PC gamers, it's quite a hassle.
I believe Bethesda is applying damage control here. People like you are ignorant on how steam actually works, thinking you really can play Skyrim offline properly, without risk of your steam account getting banned, or this current loophole is never noticed by steam and later a mandatory patch fixes it.