[Tagging] Trying to create order in cryptocurrency tagging

[kaartjesman at mykolab.com]

I recently found a discussion on how to tag crypto currencies on 
Reddit and it left me with an impression that we can do better in 
providing information.

It seems that a lot of tagging of merchants accepting crypto 
currencies is done by targeted people that are enthusiasts in 
that area.
While I think we all welcome people coming in and tagging, the 
result is a bit of a mixed bag.

One tagger realized for instance that 'Lieferando', a german 
company, provides intermediate services and you can order your 
food via them at some local restaurant or fast-food. There are 
dozens of such companies now. Deliveroo, uber eats, etc. You know 
the type.
Now, this specific one accepts crypto payments on their website 
and now we see a lot of restaurants in places like Kiel and 
Lübeck have a tag stating they accept crypto and a webpage 
pointing to the above intermediate company.

What this effectively means is that if you go to the food place 
directly, they will have no clue about crypto payments. And as 
such I concluded we need a bit more guidance and maybe reminders. 
Nothing that a experience tagger will not find a bit obvious to 
read.

I went ahead and created a new wiki page (not linked from 
anywhere as of yet) and I would like to hear if anything I think 
is 'obvious' is in actual fact not so, please go ahead and edit 
the page or maybe the talk page.

https://wiki.openstreetmap.org/wiki/Cryptocurrency


The goal is that it becomes possible to provide this easy link to 
those crypto taggers when you have a changeset that looks like 
they could use the suggestions.


Please note that nothing in this page are new rules, no new tags 
are suggested, no new methods are suggested. If anything, its the 
opposite. It helps avoid common mistakes.

Thank you!