I recently removed a node in De Beauvoir Town that advertised a flat payable with bitcoins and litecoins. I did a search on Google about the tag and it seems that there may be an overall problem about the use of the tag. Then someone mentioned about people adding their businesses just so that they show up in a website called CoinMap.
To reiterate, the OSM policy regarding places of interests is that we map what we see, or have something that we can verify: that node did not have a shopfront or any visible advert, or a reliable listing as far as I can tell, hence ineligible for inclusion for now.
What is the current status on the issue?
Update: I have since been able to verify the location as part of a another, and improvements were made: the problem that rose suspicions was it was initially poorly named and poorly located, however, I have struggled to verify a marketing business near Finsbury Park.