I don't think it depends on whether people are friendly or not. Sometimes, people want to enjoy being alone and don't want to leave the house. In this case, it is easier for them to discuss everything online.
And there are people who don't want to share their opinions about Bitcoin at all, and it's easier to refuse something or discuss it online.
In fact, there can be many reasons. Do not rush to make any conclusions.
When a trade deals with you from inside you won't be friendly outside even when you force yourself to be happy and forget about it,
This most of them are also used to been alone with their phone , so you been alone with your phone will make you loose Interest in people to and extent and if not corrected you might not be a friendly person,
Bitcoiners are readers and readers don't really talk much or associate much with people because they are always thinking about something anytime you see them.