Maybe they are not very popular between simple chatters as they don't think about privacy at all. But people that are interested in it actively use it.
Yes, I use e-Chat.co It has additional functions connected to crypto and allows me not to be only private, but earn some extra money.
You don't have to be a blogger for that. Do you use Instagram? Why can't you do similar posts in messenger and receive crypto likes for that? Do good photos, write interesting description and that's it!
The messenger doesn't work that way. Messenger is used to exchange private messages with friends. You have described a social network. Is it a social network? Does this service have several functions at once?
You already had enough time to check it First of all it's a messenger but it also has additional functions like I've mentioned above. You can try it at least - you will not lose anything.
For what reason do people use Pinterest at all? As I know you can post photos there.. It's something like Instagram but with less functions?