https://forumserver.twoplustwo.com/29/news-views-gossip/garr...
Additionally to me it makes much more sense as a cheat than as a legitimate play.
Notice that people allegedly involved in the cheating aren't good poker players. And that as shown by some comments in this hn thread there are people who think that reasoning "I think he bluffs so I call" makes sense.
The whole evening she was setting it up taking how she is gonna read him and call his bluffs, etc. She was fishing for the spot like that. It can come once or twice during the evening or not at all. Of course it makes sense that she goes for it rather than waiting for a better spot that might never happen.
She could have got e.g. a binary signal that her hand is good and didn't bother to rethink if it makes poker sense or maybe she thought it did.