You both make good points but you can be suspicious of newcomers and then subsequently be welcoming and friendly regardless of who they are once you know their intentions.
"If all mankind minus one, were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind."
~John Stuart Mill~
You both make good points but you can be suspicious of newcomers and then subsequently be welcoming and friendly regardless of who they are once you know their intentions.
"If all mankind minus one, were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind."
~John Stuart Mill~