I was wondering who is actively mapping nearby. There are quite a few roads and features laid down in Wrocław.

Here is a script for zsh that finds out. Just copy and paste into your terminal:

OSM_DATA=$(date +wrocław-%Y%m%d.osm)
WROC_BBOX="17.003574,51.090046,17.074814,51.124536"

wget osm.org/api/0.5/map\?bbox=$WROC_BBOX -O $OSM_DATA

# IFS variable must be set to a newline character.
# This is why the quoted string continues over the line.
IFS="
"

for person in $(grep user= $OSM_DATA | sed 's/.*user="\([^"]*\)".*/\1/g' | sort -u)
do
echo $person "\t" `grep user= $OSM_DATA | grep $person | wc -l`
done

And the results for today are:

Adrian Siemieniak 68
Bart Vanhauwaert 8
Jan Górski 2282
luk vanhauwaert 34
Marc Schütz 1
pavel 33
Slawek Janukowicz 620
xjr 4