Thank you for your very helpful comment - well-reasoned and pragmatic. I think (though this still needs to be validated, of course) that it takes time for people to find others with shared interests on the platforms you mentioned (Reddit, Facebook, or YouTube). Beyond simply finding such people, one also has to take the first step and initiate a conversation. Even when someone does that, they usually become part of a group rather than engaging in a one-to-one conversation.

For shy or introverted people, the likelihood of messaging someone directly with “Hi, I’m Marta-would you like to get to know each other?” is quite low. Essentially, what I am trying to do is help people who don’t have the time to spend on forums or platforms to organize their free time around meaningful, high-quality conversations. This can be especially valuable for introverts, for those who find it hard to make the first move in real life, or for people looking for connections around less common interests.

Thank you once again for your input - got a lot for myself from it!