I do not see any reason why anyone should be angry with others' choice of preference when using an app... it is their phone and their decision... If he chose to off-read the receipt, I don't think anyone needs to question him on that, if he ignores messages, I do not see any problem with that...

Most people like being a ghost online and only reply to people they feel comfortable chatting with or have business deals with, the reason most time is for peace of mind and avoid some people...

As for the status view, if you feel someone is a ghost viewer and you don't like them viewing your status, you can block them from viewing your status not force them to leave their comfort zone...

WhatsApp included all those settings for a reason.

You have to respond to someone. What if it's an emergency? What if the person needs you to actually respond? That's communication

Regarding this, I also do not think anyone owes another person a fast response or response especially if they are not close, though it is actually nice to do it but not mandatory, not everyone will respect that... Emergency? what if the person is not interested in the other person emergency? we can't force it on them...

This is why we have family, close friends, and so on.. those people are there to take care of our emergency needs and give us their attention when we need it...

If I message someone and they choose not to reply, I will let them be but I hope they also won't message me someday and expect a reply from me.

Some people also start a conversation with random strangers with hi, hey without the main reason for the dm, this is the reason why most people get snubbed, I often ignore messages like that too, when you message someone who is not your friend, the right thing to do is go straight to the points.