** How do you calculate % visited?
There are several ways of doing this (% of the total number of countries or % of the world LAND area or ..) but the method chosen here seems to non-intuitive.
a-1) If you are using the surface area of the "entire earth" including the oceans as the denominator, then even if you go to EVERY country, your percentage travelled would be less than 50%.
a-2) If you pick states for the US and Canada, does it use the "area" of the state? I would think it should as a means of tracking "progress", right ? Otherwise why would someone pick that option?
** Several islands are not highlighted when you visit a country.
b-1) When you highlight the island in question and mark it as visited, you get an error message that says "An error has been logged, and sent to WIB Support."
b-1) Hainan is part of China and Sakhalin is part of Russia. The same goes for Sardinia and Corsica (Italy and France.) These are not disputed territories.
These 2 issues have been in this application for several months and I have reported them innumerable times.
I am a developer and I can't see why they would be hard to fix - unless the answer is "We're too good for serving the likes of you. We don't need you. We won't fix them and we're doing this specifically to annoy you." which in fairness may be impolite but atleast provides closure.