I used to take photos specifically to include in Panoramio. I would even plan specific outings to locations that had no Panoramio photos.
I used to upload hundreds of photos a year.
I used to be careful to use a GPS to capture a track log of every photo outing.
I would download the track logs and use them to geolocate all of my photos.
When I uploaded, I would review the mapping for accuracy, and frequently enter a Snap To location.
I would add tags and titles and captions.
I would then go and see what my "friends" have uploaded.
I can't say I watched the stats like a hawk, but I tried to notice major trends and events.
But now...
When planning photo outings, I hardly even think of Panoramio.
In the last six months, I've uploaded less than 10 photos.
I may still carry a GPS, but I never download the track log or automatically geolocate my photos.
On the rare occasions I do upload, I will still map and will snap-to if convenient.
I still add a few tags, and titling is easy enough.
But few of my friends are uploading any more.
I can't remember the last time I looked at my stats page.
I have less and less reason to come here. Great job, Google.