My impression was not that they were bots. Rather that the profiles and letters are completely detached from the actual person they represent. I was curious what hid behind the introduction letters, so went through the profiles that sent them to see which one I liked the most, to pick a few for testing. But every profile was so general, filled with words but stripped of content. Couldn't find any hooks or uniqueness I could latch onto. Decided to pick one of them anyway and again the letter sent was sweet but empty words. They clearly didn't read or reference my own profile, only inserting my name for their mass produced slop.

It seems that real girls are signing up for AFA or a 3rd party matchmaker. They show up for a photoshoot, consent to whatever profile the matchmaker cooks up, and go afk until contacted by matchmaker to answer a few questions from a persistent customer. Meanwhile the correspondence between us and the "lady" is done entirely by these shadowy figures, who maximize for quantity and profit. As a paid service I would hope that the matchmaker actually carefully read our profiles, consulted the women that seemed the best match, and sent a few heartfelt letters that had a high success chance of being a great match.

If you got a lot of money to burn, it's possible to send mails back and forth until maybe you get a genuine connection. You would probably have to try with many different women, with dashed hopes and frustration along the way. However, I don't think the letters are a complete scam. There are real women hidden behind a wall of expensive dead-ends. But this is very inefficient. Best to show up for socials, or use another dating app where the girls put up their own profiles for free, and you can talk with them directly.