I could not disagree more. Happiness be damned, it is not the job of a friend to be blindly supportive and bobble-head along.
Does TC know the guy in question? No. But, divorced from any other context, he's absolutely right: a guy pushing to move in together after one month and a single date is a CRIMSON flag. As in, approaching actual "this could damn well be a legit dangerous situation" territory. Is it POSSIBLE that it's legit and will work out? Sure; there are a nonzero number of people who move in very quickly, get married after two months, and have very happy lives. They are grossly outnumbered by those who try that and end up in very, very shitty straits.
If I had a friend come home from a bar one night, and they told me "Guess what! There was this guy there who's a talent agent at Disney! And he says I'd I get him $1500, he can swing a role for me in Season 2 of Loki, that he thinks I'd be perfect for!" Do I, as their friend:
a) Say "Oh my God, good for you! I hope it works out!"
or
b) Say "This is sketchy as hell, and he's probably scamming you hard, or worse. Be careful."
It's not about infantilizing them, or sexism, or anything else. Friends have each other's backs; and if one is doing something dangerous or reckless, there's no reason we should have to wait for them to crash and burn before saying something.
The bold is where you lost me. Like Ive said its all about how you phrase it. You can say Hey this sounds kind of sketchy. Be careful but dont say hes probably scamming you because now you are assuming intentions that you clearly do not know and have no way to prove.
You can bring awareness to something without acting like youre somebodys dad. Its simply not our place and most people dont appreciate it.