I'm unsure what your point is here, yet from you apparent speculation, I see no reason to suppose Meryton gentlemen would be so unsure of what courtesies to offer Darcy or of what to expect of him socially (L&T posts).
From Darcy's first appearance, the Meryton people do not appear intimidated by Darcy's presence.
In the following weeks, Darcy continued to accept the hospitality of the Meryton people.
I agree, at Lucas Lodge Sir William tried to behave as a good host to Darcy- he may've thought his favourite topic, St. James' Court would put Darcy at ease !
When you read through their conversation, every time Sir William makes a comment, Darcy is abrupt.
So Darcy behaves in much the same manner as he had at the Meryton Assembly.
True, Darcy hardly enjoyed the attentions, yet Sir William was his host.