I totally agree.
I used Reddit from 2008 til 2015 and really got a lot out of all the subreddits from fermentation and bushcraft to photography, knolling and Eli5, then when I got into Bitcoin twitter made sense because I could see what the smartest people were talking about and could also learn about finance.
I left Twitter early in the year because Nostr began to fulfill both of those needs.
I find niche communities through search’s and hashtags and looking profiles of people who respond in interesting threads.
How are you thinking about sharing train journeys? Through text or images or both or neither?