In my experience, women who don't communicate well via text also don't communicate well in person. Dyslexia is a real thing, and there are other challenges, but when I got a bad feeling from her written communication it boded very badly for a date.
I don't date men, but the women I've dated often say that's their experience as well. Of course, those are women who also matched my communication style, so that may not generalize.
That’s true, I’ve seen examples of someone jumping to conclusions or taking the worst possible interpretation of a text, which is probably a red flag even in real life, face-to-face communication
actually, id say this would kill the business:
Most people look on cam much less attractive than in real life, also most people do not like to interact per video immediately (apart from the fact that with todays deepfake-AI tools one could be easily a victim to ID-theft etc.)
Most people either have poor reading comprehension or lack ability to write clearly, and that's the worst combo for relationship building.
It's really no surprise that "dating" apps devolve into clicking a picture and hooking up for sex.