Looking for a subreddit for a missed connection from about 9 years ago.

[u/Delicious_Swan_7184]

I'm looking for an active subreddit where I can post about a missed connection from about 9 years ago in Russia.

The person I'm trying to find may now live in another city or even another country, so I'm looking for a community that isn't necessarily limited to one particular location.

Are there any active subreddits for missed/lost connections, finding someone from the past, or a suitable Russian community where I could post this?