For the younger set, the money it costs them to run a rent men ad to truly never hire, but to get more money traffic for their social media, it's worth it.
Also, it "sends off alarms" for the guys you're trying to see if your inquiry looks TOO professionally done, as if they can tell it clearly is someone who is older (or smarter) than they are, and are an instant turn-off compared to the "sup", "hey", crowd that sends a body pic with their 1st message, and is around their age.
Look at the bright side of your frustration - two guys out of ten or so DO get back with you, on average in a day. Proceed with them, and fuck the eight flakes.