Don Firth uses an analogy of "guest as potential enemy" thereby suggesting the conversation is to be viewed antagonistically and adversarially.

Mousethief suggests guests are full of shit.

Not exactly the type of "family" group I'm interested in visiting with, much less joining and becoming a member of, thank you very much.

I'll continue on as guest for those reasons, and will ignore the attacks/slurs by the ignorant.

Any discussion forum is what you make of it, not what others make out of you.