You have done well in making such research about cryptocurrency maps, i have some little observations concerning your post, you could have added more energy vy taking your own time in making an explanation on some of the images you posted, some have their details on it while some have nothing to display and you didn't explain some things to know about the map, which just means you also have less or no idea about the interpretation of those maps, posting their images alone is just like an unfinished work to me, you can try to improve more better next time, but you made a nice attempts to offer something.
You are right, but I think the reason might be the length here, If he starts to write about each and every map even in short, the post would increase and might also hit the limit but that's not possible for the OP in this case. Overall, I was also expecting some explanation from the OP but he did not give any so why don't we discuss it here?
For example in the
Cryptocurrency Legality map it only talks about big countries, while leaving the developing countries, I mean to say, it does not say anything about developing countries in the map picture while it does have some statements about those countries in the details they have provided on there websites.
And to be very honest, I came to know about "Bitcoin Reachable Nodes Map" a few days ago, I did not think, there is a website that tells you about the total number of nodes and even country-wise. I don't know how they verified them because if the website gathered data on them then that's against the anonymity of those nodes if they cared about it.