I specifically want to articulate a conclusion I came to a while ago but never considered it so simply.
There are many people on this website who aren't interested in a conversation, and they're the type to message back one word replies if at all. Understanding when someone grew bored and doesn't care about engaging further is important.
Know what else is the case? People who want to have conversations but have very poor abilities to keep a conversation going. They'll message back and they'll speak like they care in tone but are not good at keeping a conversation going or have nothing to say, these are likely good listeners types who just can't talk to save their lives. When girls in the profile say "don't just message me saying 'hey'", these are the kind of people they are referring to, but they're talking to you now (you probably messaged them first, if they reached out to you maybe you're hotter than me, idk).
What I'm getting at is learn the difference between these two, one is intended to politely signal "I don't care" and the other one is not at all trying but needs to be hand held in a chat. Everyone's not the same person, blah blah, you get it.