[wafer-bw]

Something is even wrong with going to coordinates... I entered 53,40 and it took me to 53.437500,39.375000.

I'm guessing the hash is what ends up in the URL which is https://mro.name/g/uc

[mro_name]

the less digits you give, the less precise your input looks, the bigger the geohash tile you're in and the bigger the difference between your input and the tile's center.

Add more digits to the input.

[mro_name]

… and a 2 character geohash is reeeeeeally coarse. As is 0 fractional digits to lat/lon.