Thanks to OpenStreetMapNEWS (FB), where I found this article. It was also discussed on HackerNews.
Comment from chippy on 7 May 2014 at 13:02
Mapbox gets the visible attribution.
OSM gets attribution ONLY if you click the tiny "i" button.
Seriously mapbox - stop this.
Comment from gileri on 7 May 2014 at 14:05
If both Mapbox AND OSM copyright were hidden behind the "i" button I wouldn't care, but it's sad that they show their name only...
Comment from AndiG88 on 7 May 2014 at 14:28
I honestly didn't even notice the attribution when I had this full screen on a 3x as wide monitor, just seemed like another restaurant dot on the map.
Comment from Tordanik on 7 May 2014 at 15:22
I also think this style of attribution goes too far. I'm fine with clicking for attribution, but giving special treatment to your own logo in that manner is just not ok.
However, It's great news that DuckDuckGo uses OSM!
Comment from cquest on 7 May 2014 at 15:59
Great news to have Duckduckgo switching2osm !
Will be even better with proper (read visible) attribution... those icons are a fallback when there is not enough space for attribution (mobile screens for example) otherwise the requirement is clear on http://osm.org/copyright
Comment from poumtatalia on 8 May 2014 at 12:06
Less impact but Demosphere Toulouse has now switched to OSM too ;-)
Comment from arnoldfiarn on 23 July 2014 at 17:04
No se pueden registrar lugares del Perú. No existe la posibilidad en Yelp.
Comment from k1wi on 29 October 2014 at 08:21
Just for the record, Mapbox changed the way it shows attribution giving now proper credit to OSM: http://www.openstreetmap.org/user/lxbarth/diary/21847