The level of persistence a man can show when chasing after a woman is incredible. It's like Terminator. A guy will just keep coming for you and coming for you until you crush him in a machine press. Seriously, sometimes that's what it takes. That's just the beginning of the long rabbit hole of flaws us men have. Unfortunately most guys want to talk smack about the opposite sex without doing any reflecting on their own issues.
Like I said before, the internet keeps its receipts, so when this dude posted a complaint about clingy girls, he was destined for defeat. Three girls reply with screenshots of him messaging them incessantly. Come on, bro. Step up your DM game. If they aren't responding to "hi" or "hey," maybe try something that has one additional second of thought.