Stealth attraction is a method to discreetly gauge and build a woman's interest in you. It's based on regular stealth attraction of making small "escalations" with women to see if she likes you without getting rejected.
The same replies through text, with assessing interest from her responses.
However, it's essentially just another childish PUA term. Yes, gauging interest from a girl is a good idea, but that's not some powerful technique- it's just a fundamental part of meeting women.
The other part of gradually (but overtly) building her interest isn't anything new, either. After all, anyone would continually build a connection with someone they continue to spend time with (through text or not).
There's a lot more to this "technique" than just some dating 101 principles. This is where it goes off the rails.
Here's what's wrong with the regular "stealth attraction":
The good thing is you can't fully apply this "technique" to texting since you're not in person. What remains is just the basics of texting a girl, and it doesn't offer anything new.
As with every other seduction technique, the primary flaw is how it assumes women can be "gamed."
As just mentioned- the intent to manipulate is bad enough, but the woman's interest in you will never be dictated by your pickup technique.
All in all, none of it's really worth the effort. It's similar to negging where it's just not worth the effort.
The worse part is that you may be perpetually friend-zoned by a girl. No reason to indefinitely spend time talking to a girl with the hopes of it leading to "something more" one day.
The best alternative to stealth attraction texting is not using any "technique" at all.
Understand the significance and value of texting, but realize there's no secret method.
That being said, there are some basic guidelines for what you should or shouldn't do:
While there is some use or truth to stealth attraction texting, it's on things you should already know (which is mainly common sense).
Use texting to build connection, have fun, and flirt- all while not taking it too seriously or wasting too much time.
Just try not to get caught up in this misleading advice or the belief that women suck.