The reasons why your messages are not responded to:
1. No purpose: Always add why you message someone in one go. Pleasantries + purpose of texting
2. DND and variations: Some people use this as a default, so no sound leaves their device. So it's ok to text/call more if it's urgent.
3. Forgotten: They forgot to respond, maybe because of their tasks at hand.
4. Location: too many groups or pin contact, yours will not be visible at a go.
5. IDK: they wouldn't text or respond to you till when they need something.
6. Hidden contact: your contact is hidden and they have to search archived to see your message
7. Anxiety: fear of your or people's messages
8. Etc















