I now have 8 connections on Garmin Connect. If they ever upgrade and add some of the Strava funtionalities, this could get interesting. I have a feeling that we are at the beginning of the next new thing for runners...
The strange thing is that you can't really tell what people can/ can't see about you (by the way Dannirr, we can't see anything...). I discovered that there is a nice summary of your achievements/ PBs when I saw Stray Runner's profile - but it seems mine was turned off. Turned it on through the "achievements" options at the bottom of the settings page.
Unfortunately it doesn't do a comparison vs other people like Strava does but I can see that SR has a lifetime mileage that is roughly double mine
Now I just need to get that Marathon time so start with a 2 
DV: why I started running: my GF wanted to start, and I didn't like her going out in the dark on her own, so I joined her. We completed the "start to run" thing we were following and she stopped (then got pregnant), and I carried on.