I've been wondering the same thing. I've chatted with a number of bois here and moved to texting and calls, etc. Inevitably the fraud surfaces. And yeah, I've been trying 10+ years.
Recently a cute 27yo (on the profile) Latin guy who wants to be be a live-in, not demanding a salary, acts wonderfully. We get on our first voice call and he doesn't sound anything like a Latin buy from Brazil, his accent was definitely of the African or Middle Eastern variety. I asked him about it said he grew up somewhere else, I pushed on it, he couldn't name a country... BYE. So this falls under your TGTBT category for sure.
Another red flag on your list is when they describe themself and say something like "I am a loving, caring, honest..." - big clue here, some says "honest" at the get go it's a diversion, they are scamming you 99.9% of the time, as being dishonest it's their psychological need to overtly make you think he is honest. Don't fall for it, or push on it.
I like your suggestion to add "there is nothing you can say that will convince me to send you money" to the profile of an employer. I'll take you up on that!
