Boston is so awesome. You didn’t mention the museums, historical places, concerts, festivals, theaters, hundreds of little cafes and restaurants, bookstores, art galleries, several dozen universities each with events open to the public. Taking the T (public transportation) over to the Boston Common to see what’s going on, then walking through downtown, maybe stop at Fanueil Hall for a snack, then go all the way to the North End to a restaurant. Oh gods I’m homesick and I only lived there like 8 years.
Also keep an eye on: https://piefed.fediverse.observer/stats A couple thousand people (and several communities) moved there after lemm.ee died, but we interact with lemmy.
As for why it subjectively seems to be declining… maybe you know what you’re gonna see in New, and so you engage less with posts? Maybe it’s time to be more of a poster!