Sheesh! I can't recall any post in here that has espoused everyone should have the same birth values as the poster - the only 'forecefulness' I have seen is the strong desire to let people know they are allowed to ask questions and take control of their own birthing choices (not the outcomes, there is always an unknown there, we have all acknowledged that).
I think that the sense of division sometimes felt is a lot more subtle than that though Maya. True, I've likewise never seen a post that openly or specifically criticises another member's birth choices or experiences, but I've certainly seen posts where, in a general topic of discussion, a member will voice a strong opinion about an aspect of birthing or parenting , especially about an aspect of 'the system' which by inference, can be seen to be critical of people who have made that choice.

Sometimes posters who are in a specialist area of the forum (eg: homebirth support, breastfeeding support, VBAC support etc), and feel safe in voicing their passion and determination to a likeminded audience, will say things that can potentially and unintentionally polarise, if taken out of context. Whilst this rarely causes a problem because the people who made the opposite choice do not frequent that section, some members do not always moderate their passion when in a general forum, and what can be taken as enthusiasm and passion by some can be seen as condemnation by others, depending on one's point of view.

Quite a while ago, not long after having my own c/s, I saw a post in the c/s debrief forum where the mother wondered if she'd had an unnecaesarean and what the likelihood of a repeat c/s was. A poster suggested that the mother succumbed to overwhelming pressure by a typically egotistical, scalpel happy ob and suffered from a cascade of intervention as a result. Whilst the poster was sympathetic to the mother's plight, and was critical of the ob rather than the mother, the implication was clear that the mother failed herself by trusting in her ob's recommendations.

For some reason this post really resonated with me (obviously so, seeing that I remember it years later), partially because it somewhat resonated with my own circumstance, but partially as a cautionary tale that criticism of a system can sometimes unwittingly flow on into criticism of an individual's decision. I doubt very much that the poster intended this, but her passion for preventing others from suffering a similar fate in birth to her perhaps blinded her somewhat to the impact of her criticism of the system on others who had their experiences within the system.

Having said this, I think it is equally important for members to understand context when they see a post that unintentionally upsets them (no easy task, I know, if the memory of their own experience is still a traumatic one), and perhaps avoid those sections of the forums that support and encourage choices opposite to their own if they are still coming to terms with their own choices and find it difficult to separate encouragement for another's choice, or criticism of the system in general, from tacit criticism of their own choices or experience.

(Oh, and gentlemen, I'll happily beat my chest with you all, but will leave the beer drinking in your capable hands. And Maz's too).