In my personal experiences I find myself having unexpectedly interesting conversations with a myriad of people, many who may not stereotypically raise my curiosity. I think looks can be deceiving, and this is an attempt to remove that factor to give a chance to anyone who you would find interesting.
In stating this, it's true that you may lose interest in someone after realizing a lack of physical chemistry, but I think the opposite also holds true where you lose interest in someone who's very attractive because of a lack of compatibility. Maybe the best relationships stem from friendships that develop into deeper understanding and compassion.
I think we're heavily focused purely on appearances, and in doing so neglect the other important features that define our uniqueness
After they were bought by Match Group, all those experiments stopped, and the site became one with the borg. It's depressing that one shitty corporation, controls every fucking dating site, and has the money to buy pretty much any competitor at this point.
[0] https://www.reddit.com/r/gwern/comments/aapn1l/okcupid_blog_...
In other words, the longer a conversation had been going on, the smaller the influence of learning what the other person looked like was.
As regards all the brilliant psychologists here who are commenting "looks matter to most people!": it's not as though you will find every person you meet on ohmyperson unattractive. The issue is that meeting people you find attractive might happen less frequently than it would on eg Tinder. How much less frequently is an empirical question. It's worth noting that edited, filtered, selection-biased Tinder profile pics are not always useful. Sometimes they're worse than nothing. I've been on a bunch of internet dates in the past year, and half the time my date looks nothing like their photos. At least with ohmyperson I won't feel duped.
The problem I see with this model is that it might naturally lead to the situation where people develop a strong connection over messages and then feel disappointed when they meet IRL, only to find that they are incompatible for reasons of physical attraction. This happens sometimes and it's a real bummer. (It's for this reason that I think you should meet - or pass - after sending a couple messages, rather than having a protracted convo).
Just as the Tinder model provides a coarse grained filter for looks, I can see ohmyperson providing a coarse grained filter for interests, values, and relationship goals. Some apps (bumble, okc) have various filters for these sorts of attributes, but in my opinion none have really figured it out all that well.