I agree with one of the threads that you mentioned - "men are more closed in [about] talking ... ". I don't think one can then substantiate the next thought - if men were more open, women wouldn't go to other women. I think in some cases, this is truer especially in situations where men do not exist (girl/women only schools). Your suggestion relies on the fact that there is a cognitive component to sex. "Attraction" is based on more than just words - there are several non-verbal cues involved. If you wish to increase the amount of arousal in a woman, dine with her at a candle-light dinner. It won't be the food or conversation that ignites the tension. It will be the dilation of the eyes.
The main thing that differentiates humans from other hominids is the concept of hypergamy. Women tend to be attracted to males who have the best chance of survival success. Given the opportunity, women will also engage in polyandrous behaviour. Women like to have male "friends" as non-sexual partners because of an instinctual drive toward a herd behaviour. Having multiple secondary males in the herd provides greater security. If males are a threat, or are unavailable women will herd together. Consider cliches in schools. There tends to be a central girl figure surround by supporting girl followers. These are social bonds, not sexual.
RE: All Women Are Lesbians