You can already gamble 'without limit' anyway. All you have to do is get items to sell to the vendors. The only 'limit' is your patience.
Sounds to me like you have a problem with the concept of item gambling, irrespective of this form of 'income'.
It's not as though gold is 'difficult' to come by in D2. Prior to this little discovery, it would take me all of 30-40 minutes to build around a million gold, if that's what I wanted to do. I would just clear out my inventory, do some runs until I filled up on $35,000 armor, and in no time, I'd have lots of gold again.
Thus, this little 'trick' in no way has any more 'limitless' gold than any other method of obtaining gold. It's simply "faster", and as this thread will show, even *that* aspect is arguable. There are still those who believe doing item runs to sell is faster (and arguable more enjoyable).
The limit to any gold-income 'scheme' is only your patience. If this method is faster, so what? It's doubly boring. But it in no way opens up any opportunity that wasn't there already. Gambling is a legit part of the game. It is limited by gold. Gold, as I established, is only limited by your patience and dedication to gambling. It's not as though people weren't gambling prior to this method - they were.
This method may or may not speed up the process. But I doubt it speeds it up to such a ridiculous rate as to really make *that* much of an impact.
It's a novelty. I did it for about 10 minutes when I first learned it. But holy cow, is it boring, man. I wouldn't *ever* do it again unless I absolutely, positively needed cash RIGHT FREAKIN' NOW. And that really doesn't occur all that often.
The amount of people that will spend every waking minute doing this were likely already doing something equally as exploitive prior to this, so this is really not going to change things all that much.