Let me explain myself. In the late 90s, there was an IM client called ICQ. For starters, its UI was leaps and bounds ahead of anything to be seen in the next decade, and it had functionality like bots or groups, that has again become widespread a few years ago.
But what I'm talking about is the fact that I could look for "female, age between 16 and 20, who likes writing, RPGs and electronic music and is available for chat" and results would come up. You could enter your data, interests, hobbies, etc. in the program and mark yourself as available (only if you wanted) and it was a really nice way to meet people. I collected stamps at the time so I remember I would search for people who were stamp collectors in countries for which I had no stamp, leading to stamp exchanges apart from some interesting conversation (as you could also throw some of your interests in in the search window).
I thought that was the future and the tech could only get better from there, but then came MSN Messenger, with really bare-bones features in general and in particular no "searchable" functionality, and displaced ICQ. And since then, nothing similar has appeared. Instant messengers are focused on talking to people you already know, and if you want to meet new people, you have to use specific-purpose communities or dating sites. But good luck finding someone who likes writing, RPGs and electronic music at the same time... That function of searching people by interests in a huge directory of people (not restricted, e.g., to a dating site) is what I thought would take the world by storm, and as far as I know it doesn't even exist anymore at enough scale to be meaningful, at least in the West (maybe in WeChat, QQ or one of those apps used in Asia they have something similar, I don't know).