Yes yes. It's so satisfying contributing to OSM and seeing my changes pop up in OrganicMaps knowing it might help somebody and support open mapping data. I wonder if Wikipedians feel that way.

The Humanitarian OSM Team is cool too https://www.hotosm.org/

streetcomplete is a great companion app. It makes it really easy to add points of interest and help collect other data. I've already made over a thousand edits using it.

Oh man, Street Complete is very cool, thanks! I always wanted to contribute to OSM but found it a bit daunting. This is like Pokemon Go but useful!

To add to that, Maperitive is a fantastic piece of software (Windows only) to create your own custom maps for hiking or cycling with osm. A bit tough to wrap your head around unfortunately, but actually pretty powerful. Hmu if you need quick instructions