Do you know about the new profile directory? In your settings you can opt in to be listed on https://en.osm.town/explore . #Hashtags on your bio will be listed too. Give it a go!
We use @mastohost here on en.osm.town and they regularly update mastodon software. Read more about Mastodon 2.7 here https://blog.joinmastodon.org/2019/01/mastodon-2.7/
A Mapstodon instance for the OpenStreetMap Community (English language)!
This site is under construction, and may change.
Our francophone friends have a Mastodon instance: fr.osm.social