I have added my business (a hotel) to OpenStreetMap some time ago in order to also have it listed at http://coinmap.org/ .
My hotel is "Trafford Sky Homes" in Leipzig, Germany. I added the key "payment:bitcoin" with value "yes" but for some reason it won´t be listed in coinmap.org
All we can tell you is:
coinmap.org is not part of the OSM project, so we cannot tell you why they do or do not show a given place - you will have to ask them about that.
One guess: It seems you only added that tag on 2017-01-20, about a month ago. Most projects that use OSM data only fetch fresh data with some delay, so maybe the data has not yet been updated.
answered 17 Feb, 15:49